Facebook might experiment with anonymity 

Seems like an odd philosophical choice, but as a publicly-traded company, it might be a practical business decision.

In July 2011 Randi Zuckerberg "said":http://www.huffingtonpost.com/2011/07/27/randi-zuckerberg-anonymity-online_n_910892.htmlworked at Facebook, she said that anonymity on the Internet must go away. 

April 2014 - "Facebook Explores Anonymity Features":http://recode.net/2014/04/03/facebook-explores-anonymity-features/