the problem is that there are a lot that are not, and many have explicitly stated that they want to disrupt other instances
It might seem that way but I don’t actually think this extends much beyond young posters getting hyped up about how leftist they are, in the same way a 17 year old newly converted atheist is going to be mildly obnoxious to interact with in any online space.
explicitly stated that they will not moderate their users for things they do on other instances
See I saw that but I actually read it the other way; there’s a lot of dumb ways to run afoul of moderation on hexbear, not liking vegans, complaining about certain users, just relatively easy to catch a ban for totally asinine stuff. So I took that to mean that they weren’t going to hold everyone to account for hexbears code of conduct outside of hexbear spaces, so I wouldn’t catch a ban over there for talking about the logical incoherence of certain arguments for veganism here.
I can’t imagine they mean to say they’re willing to serve as a home base for disruptive and rule-breaking behavior on other instances, and they should absolutely be willing to impose bans for that (at the threat of defederating if not), and if they are saying that they should clearly reconsider, but I still think we should give these systems the opportunity to actually develop as opposed to preemptively siloing us all. lemmy.world admins should open up a dialogue with hexbear ones to see if there is some path forward if they actually do have considers that aren’t just ideological disagreements.