It will be an interesting case for us to follow to see if the lawsuit has merit or not. There is existing case law that treats online publishers like traditional newsprint publishers with respect to editorial content, although that's no guarantee of a favorable outcome.
One thing is for certain, it will cost the operators of that site some money to defend themselves in court.
Since this forum is offered for free (i.e. no revenue to pay legal fees) we'll continue to insist that users abide by the terms of service.