[thetwistedpanda]

I'm not in support of a whitelist, but it gives end-users back a small amount of control over who and who isn't banned within their own server, thus widening the appeal and the number of users that may download it.

If a community doesn't want to use the feature, then they wouldn't exactly be required to use the feature, since it should be handled on a per-server basis. A simple KV that imports steams into a Trie and checks against connections prior to executing any action would suffice. That's what, 20 lines? If you want to get a bit more involved and multi-server then a secondary database that stores entries, requiring you to query it and get a result prior to executing any action. That's still less than 100 lines.