The above is general legal and business analysis. It is not "legal advice" but analysis, and different lawyers may analyse this matter differently, especially if there are additional facts not reflected in the question. I am not your attorney until retained by a written retainer agreement signed by both of us. I am only licensed in California. See also avvo.com terms and conditions item 9, incorporated as if it was reprinted here.
Facebook has become a menace since going public. They had to settle with the FTC for tracking violations. They suspend accounts: they suggest friends but then block you because you are friending people. They vary their privacy rules for us to feel secure but then we hear they share our information with the government.
It appears to be big money greed at work. I for one do not believe you will ever win against them. It's the little guy against Enron. The lawyers are paid millions so the giant can do anything it wants.
Stop using it.