No one wins in a "Real Names" policy; those who follow it are vulnerable and those who don't care about their reputation or the consequences of their words will be jerks and then find ways to spoof their identities after such a ban.

Besides that, the internet benefits from pseudonyms; http://readwrite.com/2012/01/16/people_using_pseudonyms_leav...

And it isn't just blog comments; it's everything. If people here were using their real names and weren't allowed to create sockpuppets for one-off posts, we wouldn't see nearly the honesty and humiliation we do. People being fearful of their reputation just leads to less communication, particularly on topics that are controversial but need to be talked about. You don't need to look far to see how successful communities that embrace pseudonyms are. The argument that it leads to just as many trash posts might be true (although I see just as many idiots using their Facebook accounts to post bile on news sites); but that's why voting exists. Shame the comment, not the commenter.