see linked post. I believe this would count as one of the examples given in the federation policy https://lemm.ee/post/401063 :
An instance which is knowingly spreading CSAM into the federated network
1 point
Which is why Lemmy is a good system but I think that system is rather fragile because instances like lemmy.world could get the majority of the users, be absolute saints for a while so everyone gets comfortable and then influence the rest of the instances with threats of defederating
I guess considering there’s no monetary gain from having more users that doesn’t really work as well but still
