my point is, "third party" isn't all limited to advertising and tracking, it's also microsoft, the government and literally anyone who facebook has a shady deal with.
say, someone put their address as private. and you own a small company. simply ask facebook for his address in exchange for something and kaboom, you can come over to his house when he's asleep and rape him.
also, i wasn't kidding on the "literally anyone" part in my first paragraph.
are annoying flashy billboards seriously important enough for you to ditch all privacy for?