Money laundering and marketing.
The "millions" are mostly fake and come from the platform itself, which she advertises. They picked her specifically because she's basically mid, with a "girl next door" face and a giant square head.
...Like, "this average-looking bitch is making millions for chatting in her bikini! YOU ought to sign up and get on OnlyFans and be a camwhore and you can make millions too!" Then girls sign up and make $300/month for gaping their assholes...
You all know who is responsible for this.