I personally don't think it's that deep. I think the main issue is that a lot of social media is very trigger happy on banning anyone who offers links very openly. So to avoid that she goes the other way. Like obviously if she's still earning money from it she'll advertise it. It's just the platforms that are weird about it. Like her instagram still has pictures that I'd call OF-bait so there's some light advertising there. It's just that you have to go look on your own rather than simply following a link in bio.
Ofc I could be wrong but I know a lot of even 'clean' accounts being randomly banned because they had a patreon link in their bio and the patreon didn't even have any nudity or whatever in it. Which is a hassle if you're building a following I imagine.