Some questions about how Bluesky will work once there are multiple servers:
• Will servers be able to defederate from one another? (Presumably yes.)
• Would that block public posts, or just direct posts? (Maybe the latter.)
• Will servers be able to defederate from indexers? (I'd guess no.)
• Are blocks processed at the host or index level? (Hard to say.)
• Will users be able to filter at the host level (e.g. by keyword), or only the algorithm level? (Looks like the latter right now.)
A friendly mutual let me poke around in their account a bit, and I saw two types of moderation at the account level. One is account blocks, which seems straightforward, but given the differences in the underlying protocol, I don't think we should assume too much about how it works. The other is categorical content filtering, which relies on ML-enabled post flagging at the index server level, though I don't know if flagged posts are kept out by the algorithm or blocked at the host server.