I've been registered on Lemmygrad. Got banned for saying Stalin is not a superhero and that he made both good and bad moves.

Noted, moved to lemmy.world

I've had like three accounts banned from .ml for saying, among other things, that the US revolution didn't involve kidnapping children. Trying to have any world news discussion here is completely impossible, and that's one of the more active areas on Reddit. No wonder people try out lemmy and then bail.

Probably but people who make their account on Lemmy.world, the most common instance, also never see them.

It absolutely did. Instances should have acted on that day 1.