The Facebook rulebook, simplified:
OK -- Group "praying" for the untimely death of the president of the United States.
NOT OK -- Group outing convicted pedophiles lurking in the dark corners of Facebook.
NOW THAT we have that straight, we can go back to pondering the ramifications of a company this warped knowing so much about us and demonstrating how little it cares for privacy rights. Except, of course, if you like to have sex with minors.
In that case, Mark Zuckerberg has your back.