do law actually prohibit an organization operating in facebook property ?
If you’re asking whether selling social properties is illegal, it’s not. Went over this a million times. Is it against a company TOS? Yes. Is it illegal? No. Terms of service breaches have been proved over and over again in courts not to hold any merit unless you’re breaking obvious laws.
However, can a company take you to court over broken TOS? Sure they can. Anyone can take anyone to court. Can they win? Depends. They would have to prove damages/etc. But I am guessing no one wants to stand up to lawyers of billionaires. So, from a civil standpoint, you can absolutely get in legal trouble. But the very act of selling social properties is not illegal.
Also, the theory that they want to be hidden is weak and it conflincts with the claims that they work with giants like eBay and WarnerBros. Also, they accept credit cards. You cannot do that and expect to be anonymous as a business, period.