To thwart the trolls, social-media sites should require users' real names

"“Trolling is a terrible problem,” acknowledged Ryan Calo, an assistant law professor at the University of Washington who specializes in technology issues. “Are companies doing enough? I don’t think they are.”

He quickly added, however, that “we shouldn’t live in a world where if you don’t show utmost civility, you get erased from the Internet.”"

"“These aren’t government-run parks or streets,” observed Danielle Citron, a law professor at the University of Maryland who specializes in privacy matters. “A private company can decide what its rules are.”"