I was following part of this game. I think sometimes it is better not to give scum an opening to attack. Whomping Willow felt very, very town even while he refused to post the case and I could tell that his motivation was "don't get stuck in a massive wall war with Thor, you will lose" and not "Willow is scum who doesn't have a case" and it was fairly easy to tell that that was his motivation so I can get behind that. If he engaged Thor, the thread would have been buried under a mountain of junk and people would have derped and lynched someone else.