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.