Meffa,

There's a great feauture here called the ignore button. You don't have to see anyone's posts that you don't want to. One thing I've learned in life is that you can't change other people, but you can certainly ignore them.

When we get the occasional know-it-all, wannabe here, and he knows he's getting under your skin, he's going to continue to troll. No one takes such people seriously. So with that in mind, try sticking around.