I never saw any actual brigading on the sub itself. Others talk about "organizing brigades through Twitter," and I think it's kind of BS to punish people for that. Reddit doesn't get to police Twitter, and vice versa.
Never saw any actual advocacy of violence against any specific person, either. Sure, there were "kill the landlords" type jokes and memes, but the closest I think I ever saw it get to actual incitement of violence was stuff like "Kissinger needs to fucking die already," or "I would prefer that Trump exit the White House feet first, in a box." You can call that whatever you like, but it's certainly not advocating violence against anyone.
Meanwhile, there's literally a Stalin meme on the front page of r/fullcommunism that says "death to capitalism." Then, there's r/latestagecapitalism, which is a toxic shithole of a sub where you literally can't say "that idea is crazy and will never work because $REASONS," because they have a blacklist of words that are "slurs" of one sort of another that they don't publish, and which will get your post removed if you try and use them.