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>This is called "appeal to authority" and it's a pretty unintelligent logical fallacy. Do better next time. Maybe read a book or two?

This is called ad hominem, and has no place here.

It's only ad hominem when the argument is an insult.

In this case there's an insult inside the argument, but importantly the insult is not the argument being made. Therefore it is not ad hominem.

The overall point, as you obviously understand, is that one should avoid personal insults when making a comment here.