Why we dont remove chains/protocols once added

[g1nt0ki]

Sometimes teams put up a PR to remove a deprecated product or a chain that they no longer support.

If the tvl data is incorrect, we try to fix it, otherwise reject these PRs because:

• contracts are (usually) immutable, so even if the team stops supporting it, most cases, someone needs to host the front-end. Example: Serum was abandoned after FTX blew up, but still has a lot of tvl, and we still track it.
• If we delist a project, or remove a chain from the project, tvl history of that project and overall chain/global tvl history is incorrect now. For example, anchor and terra classic chain itself is mostly dead, but we still maintain the listings.
• We still maintain deprecated versions of projects because users are interested in project tvl history, want to compare adoption of different versions. Example, we still maintain Uniswap v1, aave v1 & compound v1.

[liassa]

good