The why is because whoever is running the group that you buy sets from is smart and doesn't advertise it and I'm pretty sure the buyers info is verified and used as a watermark so they'll know who leaks
I remember she was requesting costumers upload their ID in order to join her site. The sites membership levels started $100 going up as far as $300 a month. Given the cost and ID requirement I doubt she got many subscribers. Also doubt the ones that did join are likely to share. Or least they know she has high value in - world.
I never did understand why they felt it necessary to request customers ID. People already provide that info when filling out payment info. Sites have always known which of their costumers pirate their stuff without needing a copy of their photo ID. And I highly doubt they were ever using any type of ID verification service.
