Facebook is a system of disclosure and discovery!
I believe that it’s important to realize that systems like Facebook cater to some extent to people’s vanity.
Many people have told me that they are concerned about the lack of ability to have sub networks (separate work and family or hobby networks).
I’m not stating any opinion on that but I wanted to raise the issue that it’s possible that the risk that is thought to be associated with moving information back and forth between sub-nets might actually contribute to the value of vanity.
It fits with the “risk-reward” clique too.