Excellent, so you agree that the constant insults by icebreaker and others aren't productive at all.
Or is it only wrong when he's the one being called out for being legitimately part of something shady?
To be honest, I did not read the previous discussions, so I can't give a documented opinion about whether or not icebreaker or other were insulting - I can only speak for the conversation I quoted.
But yes, insult is not only useless, but actually counter-productive (although, ironically, it strengthens a community by uniting it against a common ennemy, irrespective of whether the threat is real or imaginary - or even created as a distraction, like some governments did in the past, since it proves to never wear out).