Certain Lemmy instances are not much different from the kindergartens over on Reddit. The same type of kids take over mod roles, forcing everyone to follow their ideology - or else, banned!
I would fully support the option on Lemmy to block or ban entire instances that suppress free expression or prevent challenging false claims and narratives. I would also fully support the possibility to complain about a mod and even demand his removal as moderator with the possibility of banning even the mod. So, not only top-down, but also bottom-up - but so think the letter is not possible in Lemmy. Only instances can be closed.