Now tell me who his closest friends are, tell me the odds of his being homosexual or belonging to a given political party, and what sort of music, movies and games he likes.
Sure, you could probably find that out by googling; but Facebook makes it significantly easier.
Saying that Facebook hasn't changed our privacy is like saying that firearms haven't changed the face of war. I mean, it just puts metal through your body just like a bow and arrows.
Woah there on the hyperbole! Using a war analogy is not the same as being correct: it breaks down too easily and ends up silly. Do you really care if you're shot with an arrow or a bullet if you are still killed??
I also don't want to turn gldalmaso into some sort of cruel hamster to argue a point.
Suffice to say the poor guys twitter feed is completely open. You or I could easily deduce all the answers to your questions based on his past tweets and followers.
If he didn't use twitter, then I could use blog comments.