[nerfhammer]

I have a feeling facebook's real name policy is because it's somehow better for ad profiling

[dymk]

It's not, your real name is one of the less useful pieces of data used in ad targeting.

[astrange]

It's because Facebook is for old people, who remember phonebooks and letters to the editor and are impressed when they see a real name and think it's authentic.

Of course, in practice they're just as vicious to each other under their real names.