You don’t buy things these days, you license them. All your games on Steam? Not yours. iTunes music? Could be taken at any moment. No reason porn would be special. These are the rules that apply to us and I don’t see a reason why Meta would be exempt from them.
Why don’t you buy some porn from Blacked.com, rent it out for money and see what happens. It’s legal after all because of first sale doctrine lol.