90% of threads are pretty boring. Most of the memes posted on Lemmy are the kinds of things I would expect from /r/memes. On the political threads people often make claims that are simply false (i.e. claiming that Marxists or 'tankies' love the Russian Federation) so naturally Hexbear will show up to contradict that stuff. You'd be hard pressed to find us organizing "brigades," we literally just have a unified ideological line that we're experienced in defending so when we see something that's easily disproven we disprove it.

Hexbear is a higly politicised instance, it makes sense that people from there are mainly interested in politics and would mostly interact with those posts.

They don't "brigade" anything, they're federated