That can be dangerous, by the way. People just don't think when posting something (and the video above is a proof to that). If someone's boss visit his employee's page and read something about himself things would go awkward. It is a very convenient instrument for police to track down people's connections to each other and opens a whole new world of possible abuses.
There's been already several cases when the posts in Facebook ruined careers. There is way too much personal information out there in the open. What surprises me the most is that people share it willingly... I just hope they won't regret about it later.