Something strange is going on: Facebook is losing customers.

Lots of customers. According to Inside Facebook's data service, Facebook lost 6 million users in the U.S. last month, dropping from 155.2 million to 149.4 million. That's the first time U.S. numbers have dropped in more than a year.
It also lost 1.52 million users in Canada, dropping to 16.6 million -- that's an 8% drop -- and 100,000 each in the U.K., Norway, and Russia.
Facebook Is Losing Users In The Countries Where It Took Off First

Is FB less successful?