You're not entirely wrong, but these girls go to Twitch because they can get money without having to take dick and do other depraved shit. I don't know if there's a better term for it, but I call it the Content Curse. If a girl is conventionally pretty enough, she only needs to do lesser body sales; it's the crustier girls who have to take dick, BBC, and start shoving shit into their holes to get attention and money. Sure she's nothing special, but she's competent enough to get a fanclub (hell, even 280+ Moo Moo still has a fan club). I don't know how Chaturbate operates, but I'm guessing it's similar to Only Fans, which is where 1% of the people make like 90% of the money; and most of those are girls who had pre-existing fanbases, like the Cashmeousside girl or a Disney kid.