Oh, yeah, they're a very loud, obnoxious little group, and removing users that are only interested in picking fights is perfectly valid. But the screenshots from the original post really only seemed to be talking about China's censorship of Tiananmen Square, and while it's impossible to say without of context, their tone really didn't seem to be combative. They just seemed to be expressing opinions about China that didn't align with the .ml mods' beliefs, and that's troubling.

What's more, Dessalines gave a response that's kinda telling about all this. A user called .ml out on censorship (in a very respectful tone), and Dessalines basically replied saying asking questions is OK when it's done in good faith, but a lot of people only ask them to start fights. When the user replied that he was actually talking about people being censored for expressing opinions in good faith that run counter to .ml mods beliefs, Dessalines chose not to reply.

I really seems like .ml wants to remove opinions that run contrary to the mods beliefs about communism. If that is the case, fair enough, but then maybe it does make sense for instances that don't moderate that way to defederate. I don't want to worry about policing myself on a bunch of the communities in my feed because I might get banned for my opinion on a news story.

Maybe these fears are unfounded, and this whole thing is being blown out of proportion, but none of the .ml mods have addressed the original post yet. Dessalines has left several comments on the Ask Lemmy post Are You a Tankie, but he's chosen not to reply to the censorship claim. Given the silence, I have to assume the worst.