You pretend to be complete assholes who take glee in the worst of things. You insult people for no reason, backstab, ect.... but it's all online, and you know damn well half the shit you all say here wouldn't fly among most sane company and likely do not act this way. So, it's Larping. With the exception of the crazy motherfucker Jim.
The whole LARPing thing on SC could be heavily attributed to labeling theory. Give someone a label to feel special and they'll intentionally act the part to further validate their snowflake status, and just as SJW's are ridiculous for pretending to have PTSD and anxiety over common sense positions, you guys are ridiculous for pretending to be these hardcore pieces of shit over wanting to fit in on a forum.