I think the idea of confected arseholery by members of the public would annoy me. I think it helps that I think I know these people already, so there's no investment into people I don't give a shit about.
I can't believe i'm saying this as I'm a reality TV show snob and immediately form a dislikeable opinion of these things, but I am enjoying traitors. I can't imagine I'll like the non-celebrity version, but who knows.