Giza should be ashamed of himself. If he keeps it up, no one's going to want to go to Anthrocon anymore. I mean it is only Dragoneer right now, but what is to stop him from insulting other people? Or to insult every furry in the world? He needs to quit with the insults and worry about his own business. What Dragoneer does is his business not Giza's. That's all I have to say on the subject.
While I think it's perfectly fair to question Giza's actions, I think it's not helpful to exaggerate the situation. Anthrocon is a very large and "staple" con meaning it has made its mark and until something goes horribly wrong, the actions of this one person doesn't actually affect that many people's consumer decisions as to whether or not they'll go. There are furries that are probably not even on FA that attend Anthrocon and don't really care about the drama or attacks between Dragoneer and Giza.
This is not the big slippery slope argument to use.