If you actually read the thread you'd see a bunch of people concerned about her well-being. She's obviously being abused by Mike, for instance. It doesn't matter if she thinks otherwise, that's a fact.
And besides, when drag your skeletons out of your closet, put them on display in the front yard, and shine lights on the goddamn things it's only natural that people will look, wonder, and judge for themselves what to make of it. Julie is screaming into the void, and the response is not a pleasant one. The world is not here to shelter you from the fallout of your own bad decisions. This thread is part of the fallout.
Julie doesn't need you trying to shield her from the consequences of her actions. She needs to face this like the adult she claims she is, accept responsibility, and make changes for the better. If she can't do that, then it's her own failure. If that's the result of some mental deficiency then you - as a friend - should encourage her to seek treatment and support outside of the internet and her abusive relationship with Mike. Fighting us doesn't do a goddamn thing for Julie. It only serves to make you feel better about yourself instead of facing the actual problem.