Facebook Trashes Fake Accounts, Users, and Likes
 

Just great, my friends list just went from one to none. The purge has commenced. Facebook is throwing out all fake users, accounts, and likes. That's right, all of those thousands of questionable thumbs ups are starting to disappear. Over the course of the day, tens of thousands of fans were quietly dropped from Facebook Pages.

http://www.hardocp.com/news/2012/09/...s_users_likes/