It's just kind of an unspoken rule of circle jerking I'd assume. Of course nobody thinks this is what a human should look like, but they praise each other so much, because unless they maintain this "positive vibe", they will never receive any praise in return. That's the danger with SJW/fatpositive shit. If you receive positive feedback no matter how disgusting and terrible you are, there is no motivator for improvement. (Except for self motivation, but obviously these things had given up on that long ago) In a society where people have enough balls to be frank when it's needed, somebody looking like this would be pressured into either turning their life around or killing themselves.