I have some experience with this, because I was cyber stalked by my long-ex husband. I was posting on an abuse victim support forum which was supposed to be monitored and secure. I did not use my real name, though I was discussing my situation. He found me anyway, even though I used a screen name. It scared the heck out of me, but a screen name did not stop someone who was determined to find me.

He took clues from some hacked emails, I was foolish enough to not change my password to something he did not know. I learned my lesson, and when I moved to another forum, he could not find me because I made my email account more secure.

Moral of the story: screen names will not protect you, but your vigilance is important to your security.

This may not be a bad idea, only because of the depravity of what the forum posters did to the wrong person. If this were RealID, the victim would have access to their names and could find them, and properly sue them. I support accountability.

I think that Blizzard should block the search function by poster's name when this comes about, and set up a way for people to notify them when their name from the Blizzard forums was used for illegal purposes. For those who have been harmed, then an anonymous ID should be set up out of courtesy.