diff --git a/DisCatSharp/Clients/DiscordOAuth2Client.cs b/DisCatSharp/Clients/DiscordOAuth2Client.cs
index a37324a65d..48dcc46a2b 100644
--- a/DisCatSharp/Clients/DiscordOAuth2Client.cs
+++ b/DisCatSharp/Clients/DiscordOAuth2Client.cs
@@ -309,6 +309,35 @@ public Task<IReadOnlyList<DiscordGuild>> GetCurrentUserGuildsAsync(DiscordAccess
 	public Task<DiscordMember> GetCurrentUserGuildMemberAsync(DiscordAccessToken accessToken, ulong guildId)
 		=> accessToken.Scope.Split(' ').Any(x => x == "guilds.members.read") ? this.ApiClient.GetCurrentUserGuildMemberAsync(accessToken.AccessToken, guildId) : throw new AccessViolationException("Access token does not include guilds.members.read scope");
 
+	/// <summary>
+	/// <para>Adds the current user to the given <paramref name="guildId"/>.</para>
+	/// <para>Some parameters might need additional permissions for the bot on the target guild. See https://discord.com/developers/docs/resources/guild#add-guild-member for details.</para>
+	/// <para>This methods invokes a sub-request to <see cref="GetCurrentUserAsync"/>.</para>
+	/// </summary>
+	/// <param name="accessToken">The discord access token.</param>
+	/// <param name="guildId">The guild id to add the member to.</param>
+	/// <param name="nickname">The new nickname.</param>
+	/// <param name="roles">The new roles.</param>
+	/// <param name="muted">Whether this user has to be muted.</param>
+	/// <param name="deafened">Whether this user has to be deafened.</param>
+	public async Task<DiscordMember> AddCurrentUserToGuildAsync(DiscordAccessToken accessToken, ulong guildId, string? nickname = null, IEnumerable<DiscordRole>? roles = null, bool? muted = null, bool? deafened = null)
+		=> accessToken.Scope.Split(' ').Any(x => x == "guilds.join") ? await this.ApiClient.AddGuildMemberAsync(guildId, (await this.GetCurrentUserAsync(accessToken)).Id, accessToken.AccessToken, nickname, roles, muted, deafened) : throw new AccessViolationException("Access token does not include guilds.join scope");
+
+	/// <summary>
+	/// <para>Adds the given <paramref name="userId"/> to the given <paramref name="guildId"/>.</para>
+	/// <para>Some parameters might need additional permissions for the bot on the target guild. See https://discord.com/developers/docs/resources/guild#add-guild-member for details.</para>
+	/// <para>This methods does not invoke a sub-request to <see cref="GetCurrentUserAsync"/>.</para>
+	/// </summary>
+	/// <param name="accessToken">The discord access token.</param>
+	/// <param name="userId">The user id to add.</param>
+	/// <param name="guildId">The guild id to add the member to.</param>
+	/// <param name="nickname">The new nickname.</param>
+	/// <param name="roles">The new roles.</param>
+	/// <param name="muted">Whether this user has to be muted.</param>
+	/// <param name="deafened">Whether this user has to be deafened.</param>
+	public async Task<DiscordMember> AddCurrentUserToGuildAsync(DiscordAccessToken accessToken, ulong userId, ulong guildId, string? nickname = null, IEnumerable<DiscordRole>? roles = null, bool? muted = null, bool? deafened = null)
+		=> accessToken.Scope.Split(' ').Any(x => x == "guilds.join") ? await this.ApiClient.AddGuildMemberAsync(guildId, userId, accessToken.AccessToken, nickname, roles, muted, deafened) : throw new AccessViolationException("Access token does not include guilds.join scope");
+
 	/// <summary>
 	/// Gets the current user's application role connection.
 	/// </summary>
diff --git a/DisCatSharp/Entities/Guild/DiscordGuild.cs b/DisCatSharp/Entities/Guild/DiscordGuild.cs
index 39583ea729..2e06738218 100644
--- a/DisCatSharp/Entities/Guild/DiscordGuild.cs
+++ b/DisCatSharp/Entities/Guild/DiscordGuild.cs
@@ -749,12 +749,12 @@ public Task<IReadOnlyList<DiscordMember>> SearchMembersAsync(string name, int? l
 	/// <summary>
 	/// Adds a new member to this guild
 	/// </summary>
-	/// <param name="user">User to add</param>
-	/// <param name="accessToken">User's access token (OAuth2)</param>
-	/// <param name="nickname">new nickname</param>
-	/// <param name="roles">new roles</param>
-	/// <param name="muted">whether this user has to be muted</param>
-	/// <param name="deaf">whether this user has to be deafened</param>
+	/// <param name="user">The user to add.</param>
+	/// <param name="accessToken">The user's access token (OAuth2).</param>
+	/// <param name="nickname">The new nickname.</param>
+	/// <param name="roles">The new roles.</param>
+	/// <param name="muted">Whether this user has to be muted.</param>
+	/// <param name="deaf">Whether this user has to be deafened.</param>
 	/// <exception cref="UnauthorizedException">Thrown when the client does not have the <see cref="Permissions.CreateInstantInvite" /> permission.</exception>
 	/// <exception cref="NotFoundException">Thrown when the <paramref name="user"/> or <paramref name="accessToken"/> is not found.</exception>
 	/// <exception cref="BadRequestException">Thrown when an invalid parameter was provided.</exception>
@@ -762,10 +762,10 @@ public Task<IReadOnlyList<DiscordMember>> SearchMembersAsync(string name, int? l
 	public Task AddMemberAsync(
 		DiscordUser user,
 		string accessToken,
-		string nickname = null,
-		IEnumerable<DiscordRole> roles = null,
-		bool muted = false,
-		bool deaf = false
+		string? nickname = null,
+		IEnumerable<DiscordRole>? roles = null,
+		bool? muted = null,
+		bool? deaf = null
 	)
 		=> this.Discord.ApiClient.AddGuildMemberAsync(this.Id, user.Id, accessToken, nickname, roles, muted, deaf);
 
diff --git a/DisCatSharp/Entities/Guild/DiscordMember.cs b/DisCatSharp/Entities/Guild/DiscordMember.cs
index 9e1dd35be8..20d1befe91 100644
--- a/DisCatSharp/Entities/Guild/DiscordMember.cs
+++ b/DisCatSharp/Entities/Guild/DiscordMember.cs
@@ -73,7 +73,7 @@ internal DiscordMember(TransportMember mbr)
 	/// Gets the members avatar hash.
 	/// </summary>
 	[JsonProperty("avatar", NullValueHandling = NullValueHandling.Ignore)]
-	public string GuildAvatarHash { get; internal set; }
+	public string? GuildAvatarHash { get; internal set; }
 
 	/// <summary>
 	/// Gets the members avatar URL.
@@ -86,13 +86,13 @@ public string GuildAvatarUrl
 	/// Gets the members banner hash.
 	/// </summary>
 	[JsonProperty("banner", NullValueHandling = NullValueHandling.Ignore)]
-	public string GuildBannerHash { get; internal set; }
+	public string? GuildBannerHash { get; internal set; }
 
 	/// <summary>
 	/// Gets the members banner URL.
 	/// </summary>
 	[JsonIgnore]
-	public string GuildBannerUrl
+	public string? GuildBannerUrl
 		=> string.IsNullOrWhiteSpace(this.GuildBannerHash) ? this.User.BannerUrl : $"{DiscordDomain.GetDomain(CoreDomain.DiscordCdn).Url}{Endpoints.GUILDS}/{this.GuildId.ToString(CultureInfo.InvariantCulture)}{Endpoints.USERS}/{this.Id.ToString(CultureInfo.InvariantCulture)}{Endpoints.BANNERS}/{this.GuildBannerHash}.{(this.GuildBannerHash.StartsWith("a_", StringComparison.Ordinal) ? "gif" : "png")}?size=1024";
 
 	/// <summary>
@@ -106,20 +106,20 @@ public override DiscordColor? BannerColor
 	/// Gets this member's nickname.
 	/// </summary>
 	[JsonProperty("nick", NullValueHandling = NullValueHandling.Ignore)]
-	public string Nickname { get; internal set; }
+	public string? Nickname { get; internal set; }
 
 	/// <summary>
 	/// Gets the members guild bio.
 	/// This is not available to bots tho.
 	/// </summary>
 	[JsonProperty("bio", NullValueHandling = NullValueHandling.Ignore)]
-	public string GuildBio { get; internal set; }
+	public string? GuildBio { get; internal set; }
 
 	/// <summary>
 	/// Gets the members's pronouns.
 	/// </summary>
 	[JsonProperty("pronouns", NullValueHandling = NullValueHandling.Ignore)]
-	public string GuildPronouns { get; internal set; }
+	public string? GuildPronouns { get; internal set; }
 
 	/// <summary>
 	/// Gets the members flags.
@@ -127,8 +127,11 @@ public override DiscordColor? BannerColor
 	[JsonProperty("flags", NullValueHandling = NullValueHandling.Ignore)]
 	public MemberFlags MemberFlags { get; internal set; }
 
+	/// <summary>
+	/// Gets the avatar hash.
+	/// </summary>
 	[JsonIgnore]
-	internal string AvatarHashInternal;
+	internal string? AvatarHashInternal;
 
 	/// <summary>
 	/// Gets this member's display name.
@@ -155,7 +158,7 @@ internal IReadOnlyList<ulong> RoleIds
 	/// </summary>
 	[JsonIgnore]
 	public IReadOnlyList<DiscordRole> Roles
-		=> this.RoleIds.Select(id => this.Guild.GetRole(id)).Where(x => x != null).ToList();
+		=> this.RoleIds.Select(id => this.Guild.GetRole(id)).Where(x => x is not null).ToList();
 
 	/// <summary>
 	/// Gets the color associated with this user's top color-giving role, otherwise 0 (no color).
@@ -165,8 +168,8 @@ public DiscordColor Color
 	{
 		get
 		{
-			var role = this.Roles.OrderByDescending(xr => xr.Position).FirstOrDefault(xr => xr.Color.Value != 0);
-			return role != null ? role.Color : new();
+			var role = this.Roles.OrderByDescending(xr => xr.Position).FirstOrDefault(xr => xr.Color.Value is not 0);
+			return role?.Color ?? new();
 		}
 	}
 
@@ -199,14 +202,14 @@ public DiscordColor Color
 	/// </summary>
 	[JsonIgnore]
 	public bool IsCommunicationDisabled
-		=> this.CommunicationDisabledUntil != null && this.CommunicationDisabledUntil.Value.ToUniversalTime() > DateTime.UtcNow;
+		=> this.CommunicationDisabledUntil is not null && this.CommunicationDisabledUntil.Value.ToUniversalTime() > DateTime.UtcNow;
 
 	/// <summary>
 	/// Whether the user has their communication disabled.
 	/// </summary>
 	[JsonIgnore]
 	public bool HasUnusualDmActivity
-		=> this.UnusualDmActivityUntil != null && this.UnusualDmActivityUntil.Value.ToUniversalTime() > DateTime.UtcNow;
+		=> this.UnusualDmActivityUntil is not null && this.UnusualDmActivityUntil.Value.ToUniversalTime() > DateTime.UtcNow;
 
 	/// <summary>
 	/// If the user is deafened
@@ -230,9 +233,12 @@ public bool HasUnusualDmActivity
 	/// Gets this member's voice state.
 	/// </summary>
 	[JsonIgnore]
-	public DiscordVoiceState VoiceState
-		=> this.Discord.Guilds[this.GuildId].VoiceStates.TryGetValue(this.Id, out var voiceState) ? voiceState : null;
+	public DiscordVoiceState? VoiceState
+		=> this.Discord.Guilds[this.GuildId].VoiceStates.GetValueOrDefault(this.Id);
 
+	/// <summary>
+	/// Gets the guild id for this member.
+	/// </summary>
 	[JsonIgnore]
 	internal ulong GuildId = 0;
 
@@ -281,7 +287,12 @@ public Permissions Permissions
 	/// </summary>
 	[JsonIgnore]
 	internal DiscordUser User
-		=> this.Discord.UserCache[this.Id];
+		=> this.Discord?.UserCache.TryGetValue(this.Id, out var user) ?? false ? user : this.ManualUser;
+
+	/// <summary>
+	/// Sets the user when converting a json object to <see cref="DiscordMember"/> while not having access to the user cache.
+	/// </summary>
+	public DiscordUser ManualUser { get; set; }
 
 	/// <summary>
 	/// Gets this member's username.
@@ -321,7 +332,7 @@ public override string UsernameWithGlobalName
 	/// Gets the member's global name.
 	/// </summary>
 	[JsonIgnore, DiscordInExperiment]
-	public override string GlobalName
+	public override string? GlobalName
 	{
 		get => this.User.GlobalName;
 		internal set => this.User.GlobalName = value;
@@ -448,13 +459,21 @@ public override UserFlags? Flags
 	/// <exception cref="NotFoundException">Thrown when the member does not exist.</exception>
 	/// <exception cref="BadRequestException">Thrown when an invalid parameter was provided.</exception>
 	/// <exception cref="ServerErrorException">Thrown when Discord is unable to process the request.</exception>
-	public Task SetMuteAsync(bool mute, string reason = null)
+	public Task SetMuteAsync(bool mute, string? reason = null)
 		=> this.Discord.ApiClient.ModifyGuildMemberAsync(this.GuildId, this.Id, default, default, mute, default, default, default, this.MemberFlags, reason);
 
-	public Task VerifyAsync(string reason = null)
+	/// <summary>
+	/// Manually verifies the member to bypass the Membership Screening requirements.
+	/// </summary>
+	/// <param name="reason">Reason for audit logs.</param>
+	public Task VerifyAsync(string? reason = null)
 		=> this.Discord.ApiClient.ModifyGuildMemberAsync(this.GuildId, this.Id, default, default, default, default, default, true, this.MemberFlags, reason);
 
-	public Task UnverifyAsync(string reason = null)
+	/// <summary>
+	/// Manually unverifies the member to not bypass the Membership Screening requirements anymore.
+	/// </summary>
+	/// <param name="reason">Reason for audit logs.</param>
+	public Task UnverifyAsync(string? reason = null)
 		=> this.Discord.ApiClient.ModifyGuildMemberAsync(this.GuildId, this.Id, default, default, default, default, default, false, this.MemberFlags, reason);
 
 	/// <summary>
@@ -466,7 +485,7 @@ public Task UnverifyAsync(string reason = null)
 	/// <exception cref="NotFoundException">Thrown when the member does not exist.</exception>
 	/// <exception cref="BadRequestException">Thrown when an invalid parameter was provided.</exception>
 	/// <exception cref="ServerErrorException">Thrown when Discord is unable to process the request.</exception>
-	public Task SetDeafAsync(bool deaf, string reason = null)
+	public Task SetDeafAsync(bool deaf, string? reason = null)
 		=> this.Discord.ApiClient.ModifyGuildMemberAsync(this.GuildId, this.Id, default, default, default, deaf, default, default, this.MemberFlags, reason);
 
 	/// <summary>
@@ -482,7 +501,7 @@ public async Task ModifyAsync(Action<MemberEditModel> action)
 		var mdl = new MemberEditModel();
 		action(mdl);
 
-		if (mdl.VoiceChannel.HasValue && mdl.VoiceChannel.Value != null && mdl.VoiceChannel.Value.Type != ChannelType.Voice && mdl.VoiceChannel.Value.Type != ChannelType.Stage)
+		if (mdl.VoiceChannel.HasValue && mdl.VoiceChannel.Value != null! && mdl.VoiceChannel.Value.Type is not ChannelType.Voice && mdl.VoiceChannel.Value.Type is not ChannelType.Stage)
 			throw new ArgumentException("Given channel is not a voice or stage channel.", nameof(action));
 
 		if (mdl.Nickname.HasValue && this.Discord.CurrentUser.Id == this.Id)
@@ -504,7 +523,7 @@ await this.Discord.ApiClient.ModifyGuildMemberAsync(this.Guild.Id, this.Id, mdl.
 	/// Disconnects the member from their current voice channel.
 	/// </summary>
 	public async Task DisconnectFromVoiceAsync()
-		=> await this.ModifyAsync(x => x.VoiceChannel = null).ConfigureAwait(false);
+		=> await this.ModifyAsync(x => x.VoiceChannel = null!).ConfigureAwait(false);
 
 	/// <summary>
 	/// Adds a timeout to a member.
@@ -515,7 +534,7 @@ public async Task DisconnectFromVoiceAsync()
 	/// <exception cref="NotFoundException">Thrown when the member does not exist.</exception>
 	/// <exception cref="BadRequestException">Thrown when an invalid parameter was provided.</exception>
 	/// <exception cref="ServerErrorException">Thrown when Discord is unable to process the request.</exception>
-	public Task TimeoutAsync(DateTimeOffset until, string reason = null)
+	public Task TimeoutAsync(DateTimeOffset until, string? reason = null)
 		=> until.Subtract(DateTimeOffset.UtcNow).Days > 28 ? throw new ArgumentException("Timeout can not be longer than 28 days") : this.Discord.ApiClient.ModifyTimeoutAsync(this.Guild.Id, this.Id, until, reason);
 
 	/// <summary>
@@ -527,7 +546,7 @@ public Task TimeoutAsync(DateTimeOffset until, string reason = null)
 	/// <exception cref="NotFoundException">Thrown when the member does not exist.</exception>
 	/// <exception cref="BadRequestException">Thrown when an invalid parameter was provided.</exception>
 	/// <exception cref="ServerErrorException">Thrown when Discord is unable to process the request.</exception>
-	public Task TimeoutAsync(TimeSpan until, string reason = null)
+	public Task TimeoutAsync(TimeSpan until, string? reason = null)
 		=> this.TimeoutAsync(DateTimeOffset.UtcNow + until, reason);
 
 	/// <summary>
@@ -539,7 +558,7 @@ public Task TimeoutAsync(TimeSpan until, string reason = null)
 	/// <exception cref="NotFoundException">Thrown when the member does not exist.</exception>
 	/// <exception cref="BadRequestException">Thrown when an invalid parameter was provided.</exception>
 	/// <exception cref="ServerErrorException">Thrown when Discord is unable to process the request.</exception>
-	public Task TimeoutAsync(DateTime until, string reason = null)
+	public Task TimeoutAsync(DateTime until, string? reason = null)
 		=> this.TimeoutAsync(until.ToUniversalTime() - DateTime.UtcNow, reason);
 
 	/// <summary>
@@ -562,7 +581,7 @@ public Task RemoveTimeoutAsync(string reason = null)
 	/// <exception cref="NotFoundException">Thrown when the member does not exist.</exception>
 	/// <exception cref="BadRequestException">Thrown when an invalid parameter was provided.</exception>
 	/// <exception cref="ServerErrorException">Thrown when Discord is unable to process the request.</exception>
-	public Task GrantRoleAsync(DiscordRole role, string reason = null)
+	public Task GrantRoleAsync(DiscordRole role, string? reason = null)
 		=> this.Discord.ApiClient.AddGuildMemberRoleAsync(this.Guild.Id, this.Id, role.Id, reason);
 
 	/// <summary>
@@ -574,7 +593,7 @@ public Task GrantRoleAsync(DiscordRole role, string reason = null)
 	/// <exception cref="NotFoundException">Thrown when the member does not exist.</exception>
 	/// <exception cref="BadRequestException">Thrown when an invalid parameter was provided.</exception>
 	/// <exception cref="ServerErrorException">Thrown when Discord is unable to process the request.</exception>
-	public Task RevokeRoleAsync(DiscordRole role, string reason = null)
+	public Task RevokeRoleAsync(DiscordRole role, string? reason = null)
 		=> this.Discord.ApiClient.RemoveGuildMemberRoleAsync(this.Guild.Id, this.Id, role.Id, reason);
 
 	/// <summary>
@@ -586,7 +605,7 @@ public Task RevokeRoleAsync(DiscordRole role, string reason = null)
 	/// <exception cref="NotFoundException">Thrown when the member does not exist.</exception>
 	/// <exception cref="BadRequestException">Thrown when an invalid parameter was provided.</exception>
 	/// <exception cref="ServerErrorException">Thrown when Discord is unable to process the request.</exception>
-	public Task ReplaceRolesAsync(IEnumerable<DiscordRole> roles, string reason = null)
+	public Task ReplaceRolesAsync(IEnumerable<DiscordRole> roles, string? reason = null)
 		=> this.Discord.ApiClient.ModifyGuildMemberAsync(this.Guild.Id, this.Id, default,
 			Optional.Some(roles.Select(xr => xr.Id)), default, default, default, default, this.MemberFlags, reason);
 
@@ -599,7 +618,7 @@ public Task ReplaceRolesAsync(IEnumerable<DiscordRole> roles, string reason = nu
 	/// <exception cref="NotFoundException">Thrown when the member does not exist.</exception>
 	/// <exception cref="BadRequestException">Thrown when an invalid parameter was provided.</exception>
 	/// <exception cref="ServerErrorException">Thrown when Discord is unable to process the request.</exception>
-	public Task BanAsync(int deleteMessageDays = 0, string reason = null)
+	public Task BanAsync(int deleteMessageDays = 0, string? reason = null)
 		=> this.Guild.BanMemberAsync(this, deleteMessageDays, reason);
 
 	/// <summary>
@@ -609,7 +628,7 @@ public Task BanAsync(int deleteMessageDays = 0, string reason = null)
 	/// <exception cref="NotFoundException">Thrown when the member does not exist.</exception>
 	/// <exception cref="BadRequestException">Thrown when an invalid parameter was provided.</exception>
 	/// <exception cref="ServerErrorException">Thrown when Discord is unable to process the request.</exception>
-	public Task UnbanAsync(string reason = null)
+	public Task UnbanAsync(string? reason = null)
 		=> this.Guild.UnbanMemberAsync(this, reason);
 
 	/// <summary>
@@ -621,7 +640,7 @@ public Task UnbanAsync(string reason = null)
 	/// <exception cref="NotFoundException">Thrown when the member does not exist.</exception>
 	/// <exception cref="BadRequestException">Thrown when an invalid parameter was provided.</exception>
 	/// <exception cref="ServerErrorException">Thrown when Discord is unable to process the request.</exception>
-	public Task RemoveAsync(string reason = null)
+	public Task RemoveAsync(string? reason = null)
 		=> this.Discord.ApiClient.RemoveGuildMemberAsync(this.GuildId, this.Id, reason);
 
 	/// <summary>
@@ -660,7 +679,7 @@ public async Task UpdateVoiceStateAsync(DiscordChannel channel, bool? suppress)
 	public async Task MakeSpeakerAsync()
 	{
 		var vs = this.VoiceState;
-		if (vs == null || vs.Channel.Type != ChannelType.Stage)
+		if (vs?.Channel?.Type is not ChannelType.Stage)
 			throw new ArgumentException("Voice state can only be updated when the user is inside an stage channel.");
 
 		await this.Discord.ApiClient.UpdateUserVoiceStateAsync(this.Guild.Id, this.Id, vs.Channel.Id, false).ConfigureAwait(false);
@@ -677,7 +696,7 @@ public async Task MakeSpeakerAsync()
 	public async Task MoveToAudienceAsync()
 	{
 		var vs = this.VoiceState;
-		if (vs == null || vs.Channel.Type != ChannelType.Stage)
+		if (vs?.Channel?.Type is not ChannelType.Stage)
 			throw new ArgumentException("Voice state can only be updated when the user is inside an stage channel.");
 
 		await this.Discord.ApiClient.UpdateUserVoiceStateAsync(this.Guild.Id, this.Id, vs.Channel.Id, true).ConfigureAwait(false);
@@ -699,11 +718,9 @@ private Permissions GetPermissions()
 		if (this.Guild.OwnerId == this.Id)
 			return PermissionMethods.FullPerms;
 
-		Permissions perms;
-
 		// assign @everyone permissions
 		var everyoneRole = this.Guild.EveryoneRole;
-		perms = everyoneRole.Permissions;
+		var perms = everyoneRole.Permissions;
 
 		// assign permissions from member's roles (in order)
 		perms |= this.Roles.Aggregate(Permissions.None, (c, role) => c | role.Permissions);
diff --git a/DisCatSharp/Entities/User/DiscordUser.cs b/DisCatSharp/Entities/User/DiscordUser.cs
index fa43d6523e..97d7586456 100644
--- a/DisCatSharp/Entities/User/DiscordUser.cs
+++ b/DisCatSharp/Entities/User/DiscordUser.cs
@@ -81,7 +81,7 @@ public virtual string UsernameWithGlobalName
 	/// Only applicable if <see cref="IsMigrated"/> is <see langword="true"/>.
 	/// </summary>
 	[JsonProperty("global_name", NullValueHandling = NullValueHandling.Ignore), DiscordInExperiment]
-	public virtual string GlobalName { get; internal set; }
+	public virtual string? GlobalName { get; internal set; }
 
 	/// <summary>
 	/// <para>Whether this user account is migrated to the new username system.</para>
@@ -133,7 +133,7 @@ public virtual DiscordColor? BannerColor
 	/// Gets the user's banner url
 	/// </summary>
 	[JsonIgnore]
-	public string BannerUrl
+	public string? BannerUrl
 		=> string.IsNullOrWhiteSpace(this.BannerHash) ? null : $"{DiscordDomain.GetDomain(CoreDomain.DiscordCdn).Url}{Endpoints.BANNERS}/{this.Id.ToString(CultureInfo.InvariantCulture)}/{this.BannerHash}.{(this.BannerHash.StartsWith("a_", StringComparison.Ordinal) ? "gif" : "png")}?size=4096";
 
 	/// <summary>
@@ -226,7 +226,7 @@ public string DefaultAvatarUrl
 	/// <para>This is only present in OAuth.</para>
 	/// </summary>
 	[JsonProperty("email", NullValueHandling = NullValueHandling.Ignore)]
-	public virtual string Email { get; internal set; }
+	public virtual string? Email { get; internal set; }
 
 	/// <summary>
 	/// Gets the user's premium type.
@@ -256,7 +256,7 @@ public string DefaultAvatarUrl
 	/// Gets the user's pronouns.
 	/// </summary>
 	[JsonProperty("pronouns", NullValueHandling = NullValueHandling.Ignore)]
-	public virtual string Pronouns { get; internal set; }
+	public virtual string? Pronouns { get; internal set; }
 
 	/// <summary>
 	/// Gets the user's mention string.
@@ -369,6 +369,32 @@ public async Task<DiscordMember> OAuth2GetGuildMemberAsync(DiscordOAuth2Client o
 	public async Task<DiscordMember> OAuth2GetGuildMemberAsync(DiscordOAuth2Client oauth2Client, ulong guildId)
 		=> await oauth2Client.GetCurrentUserGuildMemberAsync(this.AccessToken, guildId);
 
+	/// <summary>
+	/// <para>Adds the user to the given <paramref name="guildId"/>.</para>
+	/// <para>Some parameters might need additional permissions for the bot on the target guild. See https://discord.com/developers/docs/resources/guild#add-guild-member for details.</para>
+	/// </summary>
+	/// <param name="oauth2Client">The oauth2 client.</param>
+	/// <param name="guildId">The guild id to add the member to.</param>
+	/// <param name="nickname">The new nickname.</param>
+	/// <param name="roles">The new roles.</param>
+	/// <param name="muted">Whether this user has to be muted.</param>
+	/// <param name="deafened">Whether this user has to be deafened.</param>
+	public async Task<DiscordMember> OAuth2AddToGuildAsync(DiscordOAuth2Client oauth2Client, ulong guildId, string? nickname = null, IEnumerable<DiscordRole>? roles = null, bool? muted = null, bool? deafened = null)
+		=> await oauth2Client.AddCurrentUserToGuildAsync(this.AccessToken, this.Id, guildId, nickname, roles, muted, deafened);
+
+	/// <summary>
+	/// <para>Adds the user to the given <paramref name="guild"/>.</para>
+	/// <para>Some parameters might need additional permissions for the bot on the target guild. See https://discord.com/developers/docs/resources/guild#add-guild-member for details.</para>
+	/// </summary>
+	/// <param name="oauth2Client">The oauth2 client.</param>
+	/// <param name="guild">The guild to add the member to.</param>
+	/// <param name="nickname">The new nickname.</param>
+	/// <param name="roles">The new roles.</param>
+	/// <param name="muted">Whether this user has to be muted.</param>
+	/// <param name="deafened">Whether this user has to be deafened.</param>
+	public async Task<DiscordMember> OAuth2AddToGuildAsync(DiscordOAuth2Client oauth2Client, DiscordGuild guild, string? nickname = null, IEnumerable<DiscordRole>? roles = null, bool? muted = null, bool? deafened = null)
+		=> await oauth2Client.AddCurrentUserToGuildAsync(this.AccessToken, this.Id, guild.Id, nickname, roles, muted, deafened);
+
 	/// <summary>
 	/// Gets the current user's oauth2 object.
 	/// <para>Requires a <see cref="DiscordAccessToken"/> set in <see cref="AccessToken"/>.</para>
@@ -473,7 +499,7 @@ public Task UnbanAsync(DiscordGuild guild, string? reason = null)
 	/// Gets this user's presence.
 	/// </summary>
 	[JsonIgnore]
-	public DiscordPresence Presence
+	public DiscordPresence? Presence
 		=> this.Discord is DiscordClient dc && dc.Presences.TryGetValue(this.Id, out var presence) ? presence : null;
 
 	/// <summary>
diff --git a/DisCatSharp/Net/Abstractions/Rest/RestGuildPayloads.cs b/DisCatSharp/Net/Abstractions/Rest/RestGuildPayloads.cs
index 5ed0f55116..7e996f74c5 100644
--- a/DisCatSharp/Net/Abstractions/Rest/RestGuildPayloads.cs
+++ b/DisCatSharp/Net/Abstractions/Rest/RestGuildPayloads.cs
@@ -421,13 +421,13 @@ internal sealed class RestGuildMemberAddPayload : IOAuth2Payload
 	/// Gets or sets the nickname.
 	/// </summary>
 	[JsonProperty("nick", NullValueHandling = NullValueHandling.Ignore)]
-	public string Nickname { get; set; }
+	public string? Nickname { get; set; }
 
 	/// <summary>
 	/// Gets or sets the roles.
 	/// </summary>
 	[JsonProperty("roles", NullValueHandling = NullValueHandling.Ignore)]
-	public IEnumerable<DiscordRole> Roles { get; set; }
+	public IEnumerable<DiscordRole>? Roles { get; set; }
 
 	/// <summary>
 	/// Gets or sets a value indicating whether mute.
diff --git a/DisCatSharp/Net/Models/BaseEditModel.cs b/DisCatSharp/Net/Models/BaseEditModel.cs
index fe34be4d46..3b5860310f 100644
--- a/DisCatSharp/Net/Models/BaseEditModel.cs
+++ b/DisCatSharp/Net/Models/BaseEditModel.cs
@@ -8,5 +8,5 @@ public class BaseEditModel
 	/// <summary>
 	/// Reason given in audit logs
 	/// </summary>
-	public string AuditLogReason { internal get; set; }
+	public string? AuditLogReason { internal get; set; }
 }
diff --git a/DisCatSharp/Net/Rest/DiscordApiClient.cs b/DisCatSharp/Net/Rest/DiscordApiClient.cs
index db031457cc..26939036f5 100644
--- a/DisCatSharp/Net/Rest/DiscordApiClient.cs
+++ b/DisCatSharp/Net/Rest/DiscordApiClient.cs
@@ -1106,20 +1106,20 @@ internal Task LeaveGuildAsync(ulong guildId)
 	/// <summary>
 	/// Adds the guild member async.
 	/// </summary>
-	/// <param name="guildId">The guild_id.</param>
-	/// <param name="userId">The user_id.</param>
-	/// <param name="accessToken">The access_token.</param>
-	/// <param name="nick">The nick.</param>
+	/// <param name="guildId">The guild id.</param>
+	/// <param name="userId">The user id.</param>
+	/// <param name="accessToken">The user's access token.</param>
+	/// <param name="nickname">The nickname.</param>
 	/// <param name="roles">The roles.</param>
 	/// <param name="muted">If true, muted.</param>
 	/// <param name="deafened">If true, deafened.</param>
-	internal async Task<DiscordMember> AddGuildMemberAsync(ulong guildId, ulong userId, string accessToken, string nick, IEnumerable<DiscordRole> roles, bool muted, bool deafened)
+	internal async Task<DiscordMember> AddGuildMemberAsync(ulong guildId, ulong userId, string accessToken, string? nickname = null, IEnumerable<DiscordRole>? roles = null, bool? muted = null, bool? deafened = null)
 	{
 		var pld = new RestGuildMemberAddPayload
 		{
 			AccessToken = accessToken,
-			Nickname = nick ?? "",
-			Roles = roles ?? new List<DiscordRole>(),
+			Nickname = nickname,
+			Roles = roles,
 			Deaf = deafened,
 			Mute = muted
 		};
@@ -1174,7 +1174,7 @@ internal async Task<IReadOnlyList<TransportMember>> ListGuildMembersAsync(ulong
 	/// <param name="userId">The user_id.</param>
 	/// <param name="roleId">The role_id.</param>
 	/// <param name="reason">The reason.</param>
-	internal Task AddGuildMemberRoleAsync(ulong guildId, ulong userId, ulong roleId, string reason)
+	internal Task AddGuildMemberRoleAsync(ulong guildId, ulong userId, ulong roleId, string? reason)
 	{
 		var headers = Utilities.GetBaseHeaders();
 		if (!string.IsNullOrWhiteSpace(reason))
@@ -1199,7 +1199,7 @@ internal Task AddGuildMemberRoleAsync(ulong guildId, ulong userId, ulong roleId,
 	/// <param name="userId">The user_id.</param>
 	/// <param name="roleId">The role_id.</param>
 	/// <param name="reason">The reason.</param>
-	internal Task RemoveGuildMemberRoleAsync(ulong guildId, ulong userId, ulong roleId, string reason)
+	internal Task RemoveGuildMemberRoleAsync(ulong guildId, ulong userId, ulong roleId, string? reason)
 	{
 		var headers = Utilities.GetBaseHeaders();
 		if (!string.IsNullOrWhiteSpace(reason))
@@ -1223,7 +1223,7 @@ internal Task RemoveGuildMemberRoleAsync(ulong guildId, ulong userId, ulong role
 	/// <param name="guildId">The guild_id.</param>
 	/// <param name="pld">The pld.</param>
 	/// <param name="reason">The reason.</param>
-	internal Task ModifyGuildChannelPositionAsync(ulong guildId, IEnumerable<RestGuildChannelReorderPayload> pld, string reason)
+	internal Task ModifyGuildChannelPositionAsync(ulong guildId, IEnumerable<RestGuildChannelReorderPayload> pld, string? reason)
 	{
 		var headers = Utilities.GetBaseHeaders();
 		if (!string.IsNullOrWhiteSpace(reason))
@@ -1245,7 +1245,7 @@ internal Task ModifyGuildChannelPositionAsync(ulong guildId, IEnumerable<RestGui
 	/// <param name="guildId">The guild_id.</param>
 	/// <param name="pld">The pld.</param>
 	/// <param name="reason">The reason.</param>
-	internal Task ModifyGuildChannelParentAsync(ulong guildId, IEnumerable<RestGuildChannelNewParentPayload> pld, string reason)
+	internal Task ModifyGuildChannelParentAsync(ulong guildId, IEnumerable<RestGuildChannelNewParentPayload> pld, string? reason)
 	{
 		var headers = Utilities.GetBaseHeaders();
 		if (!string.IsNullOrWhiteSpace(reason))
@@ -1267,7 +1267,7 @@ internal Task ModifyGuildChannelParentAsync(ulong guildId, IEnumerable<RestGuild
 	/// <param name="guildId">The guild_id.</param>
 	/// <param name="pld">The pld.</param>
 	/// <param name="reason">The reason.</param>
-	internal Task DetachGuildChannelParentAsync(ulong guildId, IEnumerable<RestGuildChannelNoParentPayload> pld, string reason)
+	internal Task DetachGuildChannelParentAsync(ulong guildId, IEnumerable<RestGuildChannelNoParentPayload> pld, string? reason)
 	{
 		var headers = Utilities.GetBaseHeaders();
 		if (!string.IsNullOrWhiteSpace(reason))
@@ -1289,7 +1289,7 @@ internal Task DetachGuildChannelParentAsync(ulong guildId, IEnumerable<RestGuild
 	/// <param name="guildId">The guild_id.</param>
 	/// <param name="pld">The pld.</param>
 	/// <param name="reason">The reason.</param>
-	internal Task ModifyGuildRolePositionAsync(ulong guildId, IEnumerable<RestGuildRoleReorderPayload> pld, string reason)
+	internal Task ModifyGuildRolePositionAsync(ulong guildId, IEnumerable<RestGuildRoleReorderPayload> pld, string? reason)
 	{
 		var headers = Utilities.GetBaseHeaders();
 		if (!string.IsNullOrWhiteSpace(reason))
@@ -1430,7 +1430,7 @@ internal async Task<DiscordWidgetSettings> GetGuildWidgetSettingsAsync(ulong gui
 	/// <param name="isEnabled">If true, is enabled.</param>
 	/// <param name="channelId">The channel id.</param>
 	/// <param name="reason">The reason.</param>
-	internal async Task<DiscordWidgetSettings> ModifyGuildWidgetSettingsAsync(ulong guildId, bool? isEnabled, ulong? channelId, string reason)
+	internal async Task<DiscordWidgetSettings> ModifyGuildWidgetSettingsAsync(ulong guildId, bool? isEnabled, ulong? channelId, string? reason)
 	{
 		var pld = new RestGuildWidgetSettingsPayload
 		{
@@ -1798,7 +1798,7 @@ internal async Task<AutomodRule> CreateAutomodRuleAsync(
 		bool enabled = false,
 		IEnumerable<ulong> exemptRoles = null,
 		IEnumerable<ulong> exemptChannels = null,
-		string reason = null
+		string? reason = null
 	)
 	{
 		var route = $"{Endpoints.GUILDS}/:guild_id/auto-moderation/rules";
@@ -1862,7 +1862,7 @@ internal async Task<AutomodRule> ModifyAutomodRuleAsync(
 		Optional<bool> enabled,
 		Optional<List<ulong>> exemptRoles,
 		Optional<List<ulong>> exemptChannels,
-		string reason = null
+		string? reason = null
 	)
 	{
 		var pld = new RestAutomodRuleModifyPayload
@@ -1910,7 +1910,7 @@ internal async Task<AutomodRule> ModifyAutomodRuleAsync(
 	/// <param name="ruleId">The rule id.</param>
 	/// <param name="reason">The reason for this deletion.</param>
 	/// <returns>The deleted auto mod rule.</returns>
-	internal async Task<AutomodRule> DeleteAutomodRuleAsync(ulong guildId, ulong ruleId, string reason = null)
+	internal async Task<AutomodRule> DeleteAutomodRuleAsync(ulong guildId, ulong ruleId, string? reason = null)
 	{
 		var route = $"{Endpoints.GUILDS}/:guild_id/auto-moderation/rules/:rule_id";
 		var bucket = this.Rest.GetBucket(RestRequestMethod.DELETE, route, new
@@ -1944,7 +1944,7 @@ internal async Task<AutomodRule> DeleteAutomodRuleAsync(ulong guildId, ulong rul
 	/// <summary>
 	/// Creates a scheduled event.
 	/// </summary>
-	internal async Task<DiscordScheduledEvent> CreateGuildScheduledEventAsync(ulong guildId, ulong? channelId, DiscordScheduledEventEntityMetadata metadata, string name, DateTimeOffset scheduledStartTime, DateTimeOffset? scheduledEndTime, string description, ScheduledEventEntityType type, Optional<string> coverb64, string reason = null)
+	internal async Task<DiscordScheduledEvent> CreateGuildScheduledEventAsync(ulong guildId, ulong? channelId, DiscordScheduledEventEntityMetadata metadata, string name, DateTimeOffset scheduledStartTime, DateTimeOffset? scheduledEndTime, string description, ScheduledEventEntityType type, Optional<string> coverb64, string? reason = null)
 	{
 		var pld = new RestGuildScheduledEventCreatePayload
 		{
@@ -2000,7 +2000,7 @@ internal async Task<DiscordScheduledEvent> ModifyGuildScheduledEventAsync(
 		Optional<ScheduledEventEntityType> type,
 		Optional<ScheduledEventStatus> status,
 		Optional<string> coverb64,
-		string reason = null
+		string? reason = null
 	)
 	{
 		var pld = new RestGuildScheduledEventModifyPayload
@@ -2058,7 +2058,7 @@ internal async Task<DiscordScheduledEvent> ModifyGuildScheduledEventAsync(
 	/// <summary>
 	/// Modifies a scheduled event.
 	/// </summary>
-	internal async Task<DiscordScheduledEvent> ModifyGuildScheduledEventStatusAsync(ulong guildId, ulong scheduledEventId, ScheduledEventStatus status, string reason = null)
+	internal async Task<DiscordScheduledEvent> ModifyGuildScheduledEventStatusAsync(ulong guildId, ulong scheduledEventId, ScheduledEventStatus status, string? reason = null)
 	{
 		var pld = new RestGuildScheduledEventModifyPayload
 		{
@@ -2201,7 +2201,7 @@ internal async Task<IReadOnlyDictionary<ulong, DiscordScheduledEvent>> ListGuild
 	/// <param name="guildId">The guild_id.</param>
 	/// <param name="scheduledEventId">The scheduled event id.</param>
 	/// <param name="reason">The reason.</param>
-	internal Task DeleteGuildScheduledEventAsync(ulong guildId, ulong scheduledEventId, string reason)
+	internal Task DeleteGuildScheduledEventAsync(ulong guildId, ulong scheduledEventId, string? reason)
 	{
 		var headers = Utilities.GetBaseHeaders();
 		if (!string.IsNullOrWhiteSpace(reason))
@@ -2304,7 +2304,7 @@ internal async Task<IReadOnlyDictionary<ulong, DiscordScheduledEventUser>> GetGu
 	/// <param name="defaultAutoArchiveDuration">The default auto archive duration.</param>
 	/// <param name="flags">The channel flags.</param>
 	/// <param name="reason">The reason.</param>
-	internal async Task<DiscordChannel> CreateGuildChannelAsync(ulong guildId, string name, ChannelType type, ulong? parent, Optional<string> topic, int? bitrate, int? userLimit, IEnumerable<DiscordOverwriteBuilder> overwrites, bool? nsfw, Optional<int?> perUserRateLimit, VideoQualityMode? qualityMode, ThreadAutoArchiveDuration? defaultAutoArchiveDuration, Optional<ChannelFlags?> flags, string reason)
+	internal async Task<DiscordChannel> CreateGuildChannelAsync(ulong guildId, string name, ChannelType type, ulong? parent, Optional<string> topic, int? bitrate, int? userLimit, IEnumerable<DiscordOverwriteBuilder> overwrites, bool? nsfw, Optional<int?> perUserRateLimit, VideoQualityMode? qualityMode, ThreadAutoArchiveDuration? defaultAutoArchiveDuration, Optional<ChannelFlags?> flags, string? reason)
 	{
 		var restOverwrites = new List<DiscordRestOverwrite>();
 		if (overwrites != null)
@@ -2377,7 +2377,7 @@ internal async Task<DiscordChannel> CreateForumChannelAsync(
 		ThreadAutoArchiveDuration? defaultAutoArchiveDuration,
 		IEnumerable<DiscordOverwriteBuilder> permissionOverwrites,
 		Optional<ChannelFlags?> flags,
-		string reason
+		string? reason
 	)
 	{
 		List<DiscordRestOverwrite> restoverwrites = null;
@@ -2459,7 +2459,7 @@ internal Task ModifyChannelAsync(
 		Optional<ChannelType> type,
 		IEnumerable<DiscordOverwriteBuilder> permissionOverwrites,
 		Optional<ChannelFlags?> flags,
-		string reason
+		string? reason
 	)
 	{
 		List<DiscordRestOverwrite> restoverwrites = null;
@@ -2537,7 +2537,7 @@ internal async Task<DiscordChannel> ModifyForumChannelAsync(
 		Optional<ThreadAutoArchiveDuration?> defaultAutoArchiveDuration,
 		IEnumerable<DiscordOverwriteBuilder> permissionOverwrites,
 		Optional<ChannelFlags?> flags,
-		string reason
+		string? reason
 	)
 	{
 		List<DiscordRestOverwrite> restoverwrites = null;
@@ -2611,7 +2611,7 @@ internal async Task<DiscordChannel> GetChannelAsync(ulong channelId)
 	/// </summary>
 	/// <param name="channelId">The channel_id.</param>
 	/// <param name="reason">The reason.</param>
-	internal Task DeleteChannelAsync(ulong channelId, string reason)
+	internal Task DeleteChannelAsync(ulong channelId, string? reason)
 	{
 		var headers = Utilities.GetBaseHeaders();
 		if (!string.IsNullOrWhiteSpace(reason))
@@ -2878,7 +2878,7 @@ internal Task ModifyVoiceChannelStatusAsync(ulong channelId, string? status)
 	/// <param name="sendStartNotification">Whether everyone should be notified about the stage.</param>
 	/// <param name="scheduledEventId">The associated scheduled event id.</param>
 	/// <param name="reason">The reason.</param>
-	internal async Task<DiscordStageInstance> CreateStageInstanceAsync(ulong channelId, string topic, bool sendStartNotification, ulong? scheduledEventId = null, string reason = null)
+	internal async Task<DiscordStageInstance> CreateStageInstanceAsync(ulong channelId, string topic, bool sendStartNotification, ulong? scheduledEventId = null, string? reason = null)
 	{
 		var pld = new RestStageInstanceCreatePayload
 		{
@@ -2929,7 +2929,7 @@ internal async Task<DiscordStageInstance> GetStageInstanceAsync(ulong channelId)
 	/// <param name="channelId">The channel_id.</param>
 	/// <param name="topic">The topic.</param>
 	/// <param name="reason">The reason.</param>
-	internal Task ModifyStageInstanceAsync(ulong channelId, Optional<string> topic, string reason)
+	internal Task ModifyStageInstanceAsync(ulong channelId, Optional<string> topic, string? reason)
 	{
 		var pld = new RestStageInstanceModifyPayload
 		{
@@ -2954,7 +2954,7 @@ internal Task ModifyStageInstanceAsync(ulong channelId, Optional<string> topic,
 	/// </summary>
 	/// <param name="channelId">The channel_id.</param>
 	/// <param name="reason">The reason.</param>
-	internal Task DeleteStageInstanceAsync(ulong channelId, string reason)
+	internal Task DeleteStageInstanceAsync(ulong channelId, string? reason)
 	{
 		var route = $"{Endpoints.STAGE_INSTANCES}/:channel_id";
 		var bucket = this.Rest.GetBucket(RestRequestMethod.DELETE, route, new
@@ -3130,7 +3130,7 @@ internal async Task<DiscordMessage> EditMessageAsync(ulong channelId, ulong mess
 	/// <param name="channelId">The channel_id.</param>
 	/// <param name="messageId">The message_id.</param>
 	/// <param name="reason">The reason.</param>
-	internal Task DeleteMessageAsync(ulong channelId, ulong messageId, string reason)
+	internal Task DeleteMessageAsync(ulong channelId, ulong messageId, string? reason)
 	{
 		var headers = Utilities.GetBaseHeaders();
 		if (!string.IsNullOrWhiteSpace(reason))
@@ -3153,7 +3153,7 @@ internal Task DeleteMessageAsync(ulong channelId, ulong messageId, string reason
 	/// <param name="channelId">The channel_id.</param>
 	/// <param name="messageIds">The message_ids.</param>
 	/// <param name="reason">The reason.</param>
-	internal Task DeleteMessagesAsync(ulong channelId, IEnumerable<ulong> messageIds, string reason)
+	internal Task DeleteMessagesAsync(ulong channelId, IEnumerable<ulong> messageIds, string? reason)
 	{
 		var pld = new RestChannelMessageBulkDeletePayload
 		{
@@ -3210,7 +3210,7 @@ internal async Task<IReadOnlyList<DiscordInvite>> GetChannelInvitesAsync(ulong c
 	/// <param name="temporary">If true, temporary.</param>
 	/// <param name="unique">If true, unique.</param>
 	/// <param name="reason">The reason.</param>
-	internal async Task<DiscordInvite> CreateChannelInviteAsync(ulong channelId, int maxAge, int maxUses, TargetType? targetType, ulong? targetApplicationId, ulong? targetUser, bool temporary, bool unique, string reason)
+	internal async Task<DiscordInvite> CreateChannelInviteAsync(ulong channelId, int maxAge, int maxUses, TargetType? targetType, ulong? targetApplicationId, ulong? targetUser, bool temporary, bool unique, string? reason)
 	{
 		var pld = new RestChannelInviteCreatePayload
 		{
@@ -3248,7 +3248,7 @@ internal async Task<DiscordInvite> CreateChannelInviteAsync(ulong channelId, int
 	/// <param name="channelId">The channel_id.</param>
 	/// <param name="overwriteId">The overwrite_id.</param>
 	/// <param name="reason">The reason.</param>
-	internal Task DeleteChannelPermissionAsync(ulong channelId, ulong overwriteId, string reason)
+	internal Task DeleteChannelPermissionAsync(ulong channelId, ulong overwriteId, string? reason)
 	{
 		var headers = Utilities.GetBaseHeaders();
 		if (!string.IsNullOrWhiteSpace(reason))
@@ -3274,7 +3274,7 @@ internal Task DeleteChannelPermissionAsync(ulong channelId, ulong overwriteId, s
 	/// <param name="deny">The deny.</param>
 	/// <param name="type">The type.</param>
 	/// <param name="reason">The reason.</param>
-	internal Task EditChannelPermissionsAsync(ulong channelId, ulong overwriteId, Permissions allow, Permissions deny, string type, string reason)
+	internal Task EditChannelPermissionsAsync(ulong channelId, ulong overwriteId, Permissions allow, Permissions deny, string type, string? reason)
 	{
 		var pld = new RestChannelPermissionEditPayload
 		{
@@ -3612,7 +3612,7 @@ internal async Task<DiscordMember> GetGuildMemberAsync(ulong guildId, ulong user
 	/// <param name="guildId">The guild_id.</param>
 	/// <param name="userId">The user_id.</param>
 	/// <param name="reason">The reason.</param>
-	internal Task RemoveGuildMemberAsync(ulong guildId, ulong userId, string reason)
+	internal Task RemoveGuildMemberAsync(ulong guildId, ulong userId, string? reason)
 	{
 		var urlParams = new Dictionary<string, string>();
 		if (reason != null)
@@ -3710,7 +3710,7 @@ internal Task ModifyGuildMemberAsync(
 		Optional<ulong?> voiceChannelId,
 		Optional<bool> verify,
 		MemberFlags flags,
-		string reason
+		string? reason
 	)
 	{
 		var headers = Utilities.GetBaseHeaders();
@@ -3749,7 +3749,7 @@ string reason
 	/// <param name="userId">The user_id.</param>
 	/// <param name="until">Datetime offset.</param>
 	/// <param name="reason">The reason.</param>
-	internal Task ModifyTimeoutAsync(ulong guildId, ulong userId, DateTimeOffset? until, string reason)
+	internal Task ModifyTimeoutAsync(ulong guildId, ulong userId, DateTimeOffset? until, string? reason)
 	{
 		var headers = Utilities.GetBaseHeaders();
 		if (!string.IsNullOrWhiteSpace(reason))
@@ -3777,7 +3777,7 @@ internal Task ModifyTimeoutAsync(ulong guildId, ulong userId, DateTimeOffset? un
 	/// <param name="guildId">The guild_id.</param>
 	/// <param name="nick">The nick.</param>
 	/// <param name="reason">The reason.</param>
-	internal Task ModifyCurrentMemberNicknameAsync(ulong guildId, string nick, string reason)
+	internal Task ModifyCurrentMemberNicknameAsync(ulong guildId, string nick, string? reason)
 	{
 		var headers = Utilities.GetBaseHeaders();
 		if (!string.IsNullOrWhiteSpace(reason))
@@ -3839,7 +3839,7 @@ internal async Task<IReadOnlyList<DiscordRole>> GetGuildRolesAsync(ulong guildId
 	/// <param name="iconb64">The icon.</param>
 	/// <param name="emoji">The unicode emoji icon.</param>
 	/// <param name="reason">The reason.</param>
-	internal async Task<DiscordRole> ModifyGuildRoleAsync(ulong guildId, ulong roleId, string name, Permissions? permissions, int? color, bool? hoist, bool? mentionable, Optional<string> iconb64, Optional<string> emoji, string reason)
+	internal async Task<DiscordRole> ModifyGuildRoleAsync(ulong guildId, ulong roleId, string name, Permissions? permissions, int? color, bool? hoist, bool? mentionable, Optional<string> iconb64, Optional<string> emoji, string? reason)
 	{
 		var pld = new RestGuildRolePayload
 		{
@@ -3886,7 +3886,7 @@ internal async Task<DiscordRole> ModifyGuildRoleAsync(ulong guildId, ulong roleI
 	/// <param name="guildId">The guild_id.</param>
 	/// <param name="roleId">The role_id.</param>
 	/// <param name="reason">The reason.</param>
-	internal Task DeleteRoleAsync(ulong guildId, ulong roleId, string reason)
+	internal Task DeleteRoleAsync(ulong guildId, ulong roleId, string? reason)
 	{
 		var headers = Utilities.GetBaseHeaders();
 		if (!string.IsNullOrWhiteSpace(reason))
@@ -3913,7 +3913,7 @@ internal Task DeleteRoleAsync(ulong guildId, ulong roleId, string reason)
 	/// <param name="hoist">If true, hoist.</param>
 	/// <param name="mentionable">If true, mentionable.</param>
 	/// <param name="reason">The reason.</param>
-	internal async Task<DiscordRole> CreateGuildRoleAsync(ulong guildId, string name, Permissions? permissions, int? color, bool? hoist, bool? mentionable, string reason)
+	internal async Task<DiscordRole> CreateGuildRoleAsync(ulong guildId, string name, Permissions? permissions, int? color, bool? hoist, bool? mentionable, string? reason)
 	{
 		var pld = new RestGuildRolePayload
 		{
@@ -3988,7 +3988,7 @@ internal async Task<int> GetGuildPruneCountAsync(ulong guildId, int days, IEnume
 	/// <param name="computePruneCount">If true, compute_prune_count.</param>
 	/// <param name="includeRoles">The include_roles.</param>
 	/// <param name="reason">The reason.</param>
-	internal async Task<int?> BeginGuildPruneAsync(ulong guildId, int days, bool computePruneCount, IEnumerable<ulong> includeRoles, string reason)
+	internal async Task<int?> BeginGuildPruneAsync(ulong guildId, int days, bool computePruneCount, IEnumerable<ulong> includeRoles, string? reason)
 	{
 		if (days < 0 || days > 30)
 			throw new ArgumentException("Prune inactivity days must be a number between 0 and 30.", nameof(days));
@@ -4256,7 +4256,7 @@ internal async Task<DiscordInvite> GetInviteAsync(string inviteCode, bool? withC
 	/// </summary>
 	/// <param name="inviteCode">The invite_code.</param>
 	/// <param name="reason">The reason.</param>
-	internal async Task<DiscordInvite> DeleteInviteAsync(string inviteCode, string reason)
+	internal async Task<DiscordInvite> DeleteInviteAsync(string inviteCode, string? reason)
 	{
 		var headers = Utilities.GetBaseHeaders();
 		if (!string.IsNullOrWhiteSpace(reason))
@@ -4397,7 +4397,7 @@ internal async Task<IReadOnlyList<DiscordVoiceRegion>> ListVoiceRegionsAsync()
 	/// <param name="name">The name.</param>
 	/// <param name="base64Avatar">The base64_avatar.</param>
 	/// <param name="reason">The reason.</param>
-	internal async Task<DiscordWebhook> CreateWebhookAsync(ulong channelId, string name, Optional<string> base64Avatar, string reason)
+	internal async Task<DiscordWebhook> CreateWebhookAsync(ulong channelId, string name, Optional<string> base64Avatar, string? reason)
 	{
 		var pld = new RestWebhookPayload
 		{
@@ -4525,7 +4525,7 @@ internal async Task<DiscordWebhook> GetWebhookWithTokenAsync(ulong webhookId, st
 	/// <param name="name">The name.</param>
 	/// <param name="base64Avatar">The base64_avatar.</param>
 	/// <param name="reason">The reason.</param>
-	internal async Task<DiscordWebhook> ModifyWebhookAsync(ulong webhookId, ulong channelId, string name, Optional<string> base64Avatar, string reason)
+	internal async Task<DiscordWebhook> ModifyWebhookAsync(ulong webhookId, ulong channelId, string name, Optional<string> base64Avatar, string? reason)
 	{
 		var pld = new RestWebhookPayload
 		{
@@ -4562,7 +4562,7 @@ internal async Task<DiscordWebhook> ModifyWebhookAsync(ulong webhookId, ulong ch
 	/// <param name="base64Avatar">The base64_avatar.</param>
 	/// <param name="webhookToken">The webhook_token.</param>
 	/// <param name="reason">The reason.</param>
-	internal async Task<DiscordWebhook> ModifyWebhookAsync(ulong webhookId, string name, string base64Avatar, string webhookToken, string reason)
+	internal async Task<DiscordWebhook> ModifyWebhookAsync(ulong webhookId, string name, string base64Avatar, string webhookToken, string? reason)
 	{
 		var pld = new RestWebhookPayload
 		{
@@ -4595,7 +4595,7 @@ internal async Task<DiscordWebhook> ModifyWebhookAsync(ulong webhookId, string n
 	/// </summary>
 	/// <param name="webhookId">The webhook_id.</param>
 	/// <param name="reason">The reason.</param>
-	internal Task DeleteWebhookAsync(ulong webhookId, string reason)
+	internal Task DeleteWebhookAsync(ulong webhookId, string? reason)
 	{
 		var headers = new Dictionary<string, string>();
 		if (!string.IsNullOrWhiteSpace(reason))
@@ -4617,7 +4617,7 @@ internal Task DeleteWebhookAsync(ulong webhookId, string reason)
 	/// <param name="webhookId">The webhook_id.</param>
 	/// <param name="webhookToken">The webhook_token.</param>
 	/// <param name="reason">The reason.</param>
-	internal Task DeleteWebhookAsync(ulong webhookId, string webhookToken, string reason)
+	internal Task DeleteWebhookAsync(ulong webhookId, string webhookToken, string? reason)
 	{
 		var headers = new Dictionary<string, string>();
 		if (!string.IsNullOrWhiteSpace(reason))
@@ -5032,7 +5032,7 @@ internal Task DeleteOwnReactionAsync(ulong channelId, ulong messageId, string em
 	/// <param name="userId">The user_id.</param>
 	/// <param name="emoji">The emoji.</param>
 	/// <param name="reason">The reason.</param>
-	internal Task DeleteUserReactionAsync(ulong channelId, ulong messageId, ulong userId, string emoji, string reason)
+	internal Task DeleteUserReactionAsync(ulong channelId, ulong messageId, ulong userId, string emoji, string? reason)
 	{
 		var headers = new Dictionary<string, string>();
 		if (!string.IsNullOrWhiteSpace(reason))
@@ -5107,7 +5107,7 @@ internal async Task<IReadOnlyList<DiscordUser>> GetReactionsAsync(ulong channelI
 	/// <param name="channelId">The channel_id.</param>
 	/// <param name="messageId">The message_id.</param>
 	/// <param name="reason">The reason.</param>
-	internal Task DeleteAllReactionsAsync(ulong channelId, ulong messageId, string reason)
+	internal Task DeleteAllReactionsAsync(ulong channelId, ulong messageId, string? reason)
 	{
 		var headers = new Dictionary<string, string>();
 		if (!string.IsNullOrWhiteSpace(reason))
@@ -5511,7 +5511,7 @@ internal async Task<DiscordThreadResult> GetPrivateArchivedThreadsAsync(ulong ch
 	/// <param name="appliedTags">The tags to add on creation.</param>
 	/// <param name="pinned">Whether the post is pinned.</param>
 	/// <param name="reason">The reason for the modification.</param>
-	internal Task ModifyThreadAsync(ulong threadId, ChannelType parentType, string name, Optional<bool?> locked, Optional<bool?> archived, Optional<int?> perUserRateLimit, Optional<ThreadAutoArchiveDuration?> autoArchiveDuration, Optional<bool?> invitable, Optional<IEnumerable<ForumPostTag>> appliedTags, Optional<bool?> pinned, string reason)
+	internal Task ModifyThreadAsync(ulong threadId, ChannelType parentType, string name, Optional<bool?> locked, Optional<bool?> archived, Optional<int?> perUserRateLimit, Optional<ThreadAutoArchiveDuration?> autoArchiveDuration, Optional<bool?> invitable, Optional<IEnumerable<ForumPostTag>> appliedTags, Optional<bool?> pinned, string? reason)
 	{
 		var pld = new RestThreadChannelModifyPayload
 		{
@@ -5638,7 +5638,7 @@ internal async Task<DiscordGuildEmoji> GetGuildEmojiAsync(ulong guildId, ulong e
 	/// <param name="imageb64">The imageb64.</param>
 	/// <param name="roles">The roles.</param>
 	/// <param name="reason">The reason.</param>
-	internal async Task<DiscordGuildEmoji> CreateGuildEmojiAsync(ulong guildId, string name, string imageb64, IEnumerable<ulong> roles, string reason)
+	internal async Task<DiscordGuildEmoji> CreateGuildEmojiAsync(ulong guildId, string name, string imageb64, IEnumerable<ulong> roles, string? reason)
 	{
 		var pld = new RestGuildEmojiCreatePayload
 		{
@@ -5682,7 +5682,7 @@ internal async Task<DiscordGuildEmoji> CreateGuildEmojiAsync(ulong guildId, stri
 	/// <param name="name">The name.</param>
 	/// <param name="roles">The roles.</param>
 	/// <param name="reason">The reason.</param>
-	internal async Task<DiscordGuildEmoji> ModifyGuildEmojiAsync(ulong guildId, ulong emojiId, string name, IEnumerable<ulong> roles, string reason)
+	internal async Task<DiscordGuildEmoji> ModifyGuildEmojiAsync(ulong guildId, ulong emojiId, string name, IEnumerable<ulong> roles, string? reason)
 	{
 		var pld = new RestGuildEmojiModifyPayload
 		{
@@ -5723,7 +5723,7 @@ internal async Task<DiscordGuildEmoji> ModifyGuildEmojiAsync(ulong guildId, ulon
 	/// <param name="guildId">The guild_id.</param>
 	/// <param name="emojiId">The emoji_id.</param>
 	/// <param name="reason">The reason.</param>
-	internal Task DeleteGuildEmojiAsync(ulong guildId, ulong emojiId, string reason)
+	internal Task DeleteGuildEmojiAsync(ulong guildId, ulong emojiId, string? reason)
 	{
 		var headers = new Dictionary<string, string>();
 		if (!string.IsNullOrWhiteSpace(reason))
@@ -5829,7 +5829,7 @@ internal async Task<DiscordSticker> GetGuildStickerAsync(ulong guildId, ulong st
 	/// <param name="tags">The tags.</param>
 	/// <param name="file">The file.</param>
 	/// <param name="reason">The reason.</param>
-	internal async Task<DiscordSticker> CreateGuildStickerAsync(ulong guildId, string name, string description, string tags, DiscordMessageFile file, string reason)
+	internal async Task<DiscordSticker> CreateGuildStickerAsync(ulong guildId, string name, string description, string tags, DiscordMessageFile file, string? reason)
 	{
 		var route = $"{Endpoints.GUILDS}/:guild_id{Endpoints.STICKERS}";
 		var bucket = this.Rest.GetBucket(RestRequestMethod.POST, route, new
@@ -5857,7 +5857,7 @@ internal async Task<DiscordSticker> CreateGuildStickerAsync(ulong guildId, strin
 	/// <param name="description">The description.</param>
 	/// <param name="tags">The tags.</param>
 	/// <param name="reason">The reason.</param>
-	internal async Task<DiscordSticker> ModifyGuildStickerAsync(ulong guildId, ulong stickerId, Optional<string> name, Optional<string> description, Optional<string> tags, string reason)
+	internal async Task<DiscordSticker> ModifyGuildStickerAsync(ulong guildId, ulong stickerId, Optional<string> name, Optional<string> description, Optional<string> tags, string? reason)
 	{
 		var route = $"{Endpoints.GUILDS}/:guild_id{Endpoints.STICKERS}/:sticker_id";
 		var bucket = this.Rest.GetBucket(RestRequestMethod.PATCH, route, new
@@ -5893,7 +5893,7 @@ internal async Task<DiscordSticker> ModifyGuildStickerAsync(ulong guildId, ulong
 	/// <param name="guildId">The guild id.</param>
 	/// <param name="stickerId">The sticker id.</param>
 	/// <param name="reason">The reason.</param>
-	internal async Task DeleteGuildStickerAsync(ulong guildId, ulong stickerId, string reason)
+	internal async Task DeleteGuildStickerAsync(ulong guildId, ulong stickerId, string? reason)
 	{
 		var route = $"{Endpoints.GUILDS}/:guild_id{Endpoints.STICKERS}/:sticker_id";
 		var bucket = this.Rest.GetBucket(RestRequestMethod.DELETE, route, new