Well, I mean, THIS is her career. She hardly posts on her other socials, streams once per month ( usually if she's broken up with some guy, the income is low and needs some fresh faces on OF, or she is about to travel and wants some quick income, so again comes online on Twitch so show that she is around )
But that is her only income/job she has, right?
And NO, not every Twitch girl goes full nude; eventually most of them do when they lose almost all of their fanbase, so they have to step their game up, but there are a lot of girls who never change and will do the same thing.
A lot of people are just scared and being scammed by these girls.