I’ve spent some time thinking about this and believe that the answer is the most retarded concept possible for a board.
/shit/ - Shitflinging
Spam is allowed, obnoxious text formatting is turned on, and the goal is to overwhelm other anons with strange insults and the like. Anons pick something to stand behind, like the country they live in or an anime, and then go on board terrorism campaigns spamming their “territory” while labeling everything else as inferior. The catalog would probably look bipolar, one thread could just be “FUCK PEPE” with no context and the one right next to it could be someone calmly outlining their points on why Bosnia is the worst Balkan state and should be destroyed.