Not really no. Facebook has been known for a while for building profiles of unregistered people and tracking them around. Then people you know offline who are on facebook will rat tons of information about you all the time. People are just submitting personal information without a second thought.

Zuck: Yeah so if you ever need info about anyone at Harvard Zuck: Just ask. Zuck: I have over 4,000 emails, pictures, addresses, SNS [Redacted Friend's Name]: What? How'd you manage that one? Zuck: People just submitted it. Zuck: I don't know why. Zuck: They "trust me" Zuck: Dumb fucks.