>There are certainly people who believe what they say on /pol/, but the vast majority of them are consciously acting as a parody of what they have been cast to be.
I'm relying only on personal experience. I know several people in real life that are "shitlords" online. They're doing it not because they believe the things they post, but because they've found it to be an effective way to shift the narrative and to throw their political opponents off-balance.
Likewise, I know a few people in real life that actually hold those extreme and (frankly) bigoted beliefs. As far as I know they haven't really changed their online behavior, and they're not part of that in-group.
What leads you to believe this?