Aliss has no fucking idea what her path to internet stardom should be so she entertains everything for 2 minutes including getting really fat during covid. She isn’t really part of this world.
I never found BoBerry very interesting, but I can’t buy her being stuck up. To the extent she is, it is at best only in the context of this community where other women her size are NEET gamercore low-status people. She tries to blend into normal middle-ish class society in her mannerisms and aesthetics (aside from weight) compared to the more obvious outcasts that make up other women near her size.
But the idea of her being stuck up in real life is implausible since realistically she’s a huge monster to be looked down on in most people’s eyes. She might have a defensive chip on her shoulder as a result of that (I could see this), since again she tries to be part of the normie world in the first place. But in terms of actual opportunity to hold true stuck-upness over other middle class northern Californians, lol she would have little opportunity.