I dunno.. it's not illegal to advertise through a ppc system as long as you are paying and not crapping out on the payouts to the service provider, nothing wrong there. BUT, I can see why FB would be pissed off, I mean let's face it, they have their terms, just like everyone else does, and they clearly care about the quality, because no other company has ever fixed the issue they were having sooooo quickly. That has to be some sort of response time record if you think about it. Sure, their TOS is really gay, but you know what, it's THEIR terms, not ours or yours, and they aren't here to do anyone any favors either, they are here to make money and run themselves like a business (even if they pretend like Google does and try to get people to like them and think they are here to spread cheer and glee everywhere).
Whatever, I was about to get into it, and maybe this saves me from doing so or getting into any legal shit that I sure as hell don't want to get into. But there isn't anything illegal going on, whatsoever, but, remember guys, this isn't like Myspace, they do have your personal data, so it's not like they have to look or try very hard to do anything about it.