I think they generally try to keep themselves in their echo chambers, but as they're federated, can't sometimes help themselves and have to input some would-be-snarky comment they think is ever-so-clever. Then they get ratio'd hard, they get their bot-armies to vote on when they're off instance (if you look you'll see quite a lot of the time there might be a lot of downvotes for opinions against them, but always at most one or two more than how many upvotes it has. it means for mobile users the comment looks less reactive than it is).

Then their egos get hurt because we bitch slap reality in their faces and they go crying back to whatever grad they crawled out from.