Well joke's on us because they could already do this. The Facebook knows about my existence. It knows my name, my face, and my friends. My email too. I'd have to avoid contact with all people that use the Facebook to prevent this. Infeasible.
They just don't publish the data because they have little to gain from it and there's no reason to needlessly antagonize people. They sell it without telling anybody.
They just don't publish the data because they have little to gain from it and there's no reason to needlessly antagonize people. They sell it without telling anybody.