fastulus
dude, you're missing the point. It wasn't Einstein that called the guy an idiot. It was a THR member. I sincerely doubt that he's in the same league as those you mentioned.
In my long and storied life, I have found that, the more intelligent someone is, the less likely they are to call someone else an idiot.
I had a cousin-in-law that always used to call his boss/owner an idiot and go on and on at great lengths about all the stupid things he did. Funny, the boss was a multi-millionaire and the cousin-in-law didn't have two nickles to rub together.