SysAdmin
A chimpanzee and two trainees in a trench coat
As ValueSubtracted said, as far as we can tell, the problem is on Lemmy.world’s side as we are not seeing any major disruptions with content from other instances. But we are looking into options on our end.
Defederation is the nuclear option. Until now we had removed any communities we weren’t comfortable hosting, and treated users on a case-by-case basis based on how they behaved in our communities, which worked for a while but became untenable.
When we started this project the admin team felt that welcoming outsiders into our (wholesome, sane) Star Trek communities was the net-positive action. But as I said it became too much to handle so we unfortunately had to cut the cord.
I think Beehaw.org is. We’re 2/3 as well (now). .ml has some communities/users we’ve removed, but largely speaking .ml users have not caused any issues on our hosted communities, and we feel exposing them to our (generally awesome) communities is the net-positive here. Honestly .world’s (lack of) moderation is more actively an issue for our mods, but since they’re so big and we’re a niche instance we really can’t afford to de-federate from them.
You are correct that it is a requirement for all communities hosted on this instance to be actively moderated within instance principles.
I’m not against hosting a comics community, but it’s also not like /c/StarTrek is overflowing with OC and I’m sure the mods would be happy to have comics content (and you happier with their 10k users).