It isn't a question of "challenging [my] knowledge," it's a question of you acting like kind of a jerk. I realize you don't see yourself as the one starting an argument here, and I have observed your manners likewise lacking on many occasions on this website before. Your opinion of the matter is not well qualified. You're being an ass. Knock it off.

I realize you're probably not accustomed to being called on your lousy behavior. I doubt you will need to become so. But just for once, here we are. You don't bother to find out what you're talking about before you speak and then you want your hand held on points that were already clarified, had you but bothered to catch up. I don't tolerate that in candidates, I won't tolerate it in colleagues, and I see no very pressing reason to tolerate it here.