Perhaps "idiot" was too strong a word. But my point is not about severity--it's about personal attacks in general. I did not mean to imply Gruber called anyone

Perhaps "idiot" was too strong a word. But my point is not about severity--it's about personal attacks in general. I did not mean to imply Gruber called anyone an idiot; rather, I was just illustrating how an ad hominem is an ad hominem regardless of accuracy.