In some respects you are right. However most people have, to date, assumed some level of privacy. The issues can probably be summarised as: 1) Lots of people u

In some respects you are right. However most people have, to date, assumed some level of privacy. The issues can probably be summarised as: 1) Lots of people using these services assume only friends can see/access their data. They don't realise that much of their stuff is actually visible to a much wider audience, or if it wasn't before, it is now, due to privacy policy changes. This problem is exacerbated by extremely complex and lengthy privacy options. 2) It's not just about what you are putting out there, it's what others are putting out there about you. Whilst you might be happy for a friend to post a picture of you puking at the prom, or smoking a fat reefer, and to have that image accessible by only your friends, you probably wouldn't be so happy for your prospective employer to see it, and would, I imagine, be pretty hacked off if an image like this became accessible through some privacy change.