Called this a week and a half ago. Anyone who's LGBT (or anyone period really) knows that there are reasons to keep things on FB private from friends, family, employers selectively, etc. I had mentioned this was likely illegal for this very reason. Numerous states in the US have similar anti-discrimination laws. When I was interviewed at Microsoft they basically told me I couldn't talk about certain things and they were specifically trained to not ask questions that could reveal information that could lead to these sorts of suits.
I don't understand the downvotes? I've seen at least 4 people downvote this. Do you not believe me? And to edit for the people below, I was more or less hint-hint told that this was at least including not wanting to force someone to reveal that they were LGBT. I know that at least the group I was with, they were forbid from asking if "you have a girlfriend" and it wasn't for fear of an interviewer hitting on someone.