Yeah, I've seen this sort of thing before: first they reel 'em in smooth like with door-to-door vacuum cleaner sales, get 'em hooked on only fans, then BAM, they're selling their ass on Pico for $50 a pop.
The only way I see it as a possible human trafficking is that this is the method to find people in desperate situations with low street intelligence and very little support network. I don't think human trafficking especially the way it is reported on news and social media etc isn't as widespread as it seems or happens the way they warn.