A very important piece on the value of pseudonymity by the wonderful Danah Boyd, “Real Names” Policies Are an Abuse of Power:

The people who most heavily rely on pseudonyms in online spaces are those who are most marginalized by systems of power. “Real names” policies aren’t empowering; they’re an authoritarian assertion of power over vulnerable people. These ideas and issues aren’t new (and I’ve even talked about this before), but what is new is that marginalized people are banding together and speaking out loudly.

What’s at stake is people’s right to protect themselves, their right to actually maintain a form of control that gives them safety. If companies like Facebook and Google are actually committed to the safety of its users, they need to take these complaints seriously. Not everyone is safer by giving out their real name. Quite the opposite; many people are far LESS safe when they are identifiable. And those who are least safe are often those who are most vulnerable.