An anonymous reader writes "Last week, during its fourth-quarter earnings report, Facebook revealed it had 1.23 billion monthly active users, 757 million daily active users, 945 million monthly active mobile users, and 556 million daily active mobile users. In its 10-K filing published on the weekend, the company estimated that in 2013, between 5.5 percent and 11.2 percent of these users were fake." Another anonymous reader sent in a link to a recent interview where Mark Zuckerberg appears more pragmatic in his opinions about forcing real identities online: "Former Facebook employees say identity and anonymity have always been topics of heated debate in the company. Now Zuckerberg seems eager to relax his old orthodoxies. 'I don’t know if the balance has swung too far, but I definitely think we’re at the point where we don’t need to keep on only doing real identity things,' he says. 'If you’re always under the pressure of real identity, I think that is somewhat of a burden.'"