Lemmy.world did defederate from exploding-heads, but never defederated from hilariouschaos as far as I know. When hilariouschaos appeared the admin team discussed it and decided to take a wait-and-see approach. First, some of the more problematic exploding-heads users seemed to be gone. Second, by that time Lemmy had more blocking options for users to curate their own feeds, so instance-level defederation seemed less urgent.
We will discuss it again. Personally, it’s been a while since I have peeked over the fence to see what they’re up to over there.
We’re aware. AFAIK, nobody has expressed interest in taking over that community and bringing it back to life.
@TheTechnician27@lemmy.world would you like to volunteer?