Sometimes on some other site people troll subreddits with fake posts but that's all I can think of. I miss raids too, but as others have said, it's harder to do when all you have to target is massive corporate social media sites.
Trolling is still very much a thing though. Easiest mode is to just take whatever dumbass political philosophy they're circlejerking about and turn up the intensity and see how long they'll agree with you.