In my experience, i tried to join facebook a couple of months ago and: a) It asked me for a lot of private information. I submit all of them. b) Then i entered. Facebook suggested me, a list of contacts. All of them are ugly people. c) And finally, facebook asked me for a real photo. I used a real photo the first time but i think facebook is a bit faulty.. d) The interface is a real mess.

Conclusion: i am seasoned with linkedin, where everybody is a "winner", may be not but they try to do that. In facebook its the opposite, everybody show the worst.