@lrhodes @gvelez17 @shiri @snarfed.org
An interesting aspect of blocks on Bsky is that they're non-destructive, so they don't actually cut follow-relationships (but essentially fully suspend them) and are pretty reversible. I think that's an implementation detail though and neither AT nor AP really prescribe this one way or another.
Non-destructive blocks are a bit nicer with shared blocklists, since that means less "spiky" computing and that block lists can't do as much damage if they become unreliable.