I really don't want to say this but, the real names policy does help in terms of trolling behavior for certain communities. When TechCrunch switched over from Disqus to Facebook comments, the amount of trash and trolling was immediately reduced and stayed at a minimum permanently. A lot of the media outlets (Motherboard, Vice, NPR) who've disabled commenting altogether were using Disqus. I've noticed media outlets that use Facebook comments seem to still have commenting turned on.

I know anonymity in comment systems is as touchy a subject for internet freedom lovers as gun rights are for people in high crime neighborhoods. Those that hate them have already made up their mind and won't look at contradicting evidence, those that love them have already made up their mind and won't look at contradicting evidence. The truth seems to lies somewhere in the middle.

So "Real Names Policy" definitely has it's place. Maybe not everywhere, but definitely in some communities.