Youtube = Some goofy people and a few trolls getting into the game. Best to use certain vids as source material to bother people on other sites.
Facebook = The big leagues of trolling. Many styles work here and once you start its easy to make multi-characters. RIP Jaquandre, will here ever come home?
Twitter = Batsh!t insane people who actually believe what they say. If you've been on the above sites you might think the blue checkmarks arguing gender pronouns are me trolling (or D2R).. . . but no! they are CHAZ comrades who will get bothered by anything you say.
4Chan = I hear this is where the troll gods live, but I am not at that level to even bask in their glory.