This is outrageous. It was already outrageous that anonymous posters were outed.
I agree with you that the action taken against Mark and Connie Fournier and, inter alia, Free Dominion, is outrageous.
However, I don't believe it outrageous that anonymous posters were outed. Just because we have a technology that allows world-wide anonymous publication of speech doesn't mean that the speaker should be exempt from libel laws.
We already beat that issue to death on FR during the Terri Schiavo ordeal.
Note I'm not suggesting in any form that posters at Free Dominion libeled anyone.