"According to Daphne Keller, a director at the Center for Internet and Society at Stanford’s school of law, outing those anonymous defendants might be the only way Miltenberg can get the case heard. It’s likely that Google – which was not named in the suit – and Donegan as the document’s creator will be immunized by federal statute and could get the case dismissed, Keller said.
“The other defendants are the people who actually posted the content about this individual plaintiff and they could very well be liable,” she said. “But then there is the question of whether the plaintiff can find out who they are. IP addresses can be roughly correlated to a person or a machine but not in a way that is reliable, where you know for sure who it was.”"