But having left beehaw recently, I would say I can’t really see any good reasons to leave lemmy world.
I only left beehaw because one admin I felt was overlooking crap people in one specific minority and it was slowly turning into a echo chamber. Ironically, it turns out the crap person in particular coloured my perception of other lemmy servers ages ago to make it seem like other lemmy servers were a cesspool (they are not)
It was also surprisingly unstable compared to lemmy world servers
I haven’t seen any actions by lemmy world admins however which would encourage leaving.
In fact, you can access mostly the same posts from different servers here anyway because servers are mostly federated