No one criticizes his knowledge, only his attitude. As far as I know, he knows about kangaroos and beyond that, I don't know what else he knows. Anyone can theorize. Here, he constantly makes mistakes by believing he is always right, to the point of being dogmatic. However, I don't know anything about you to assume that you are a reference or an authority here. You can only say that your achievement was based on having money.

edit:

And before you answer me, let me explain what I did. I responded with a somewhat valid argument, but I attacked you by minimizing your knowledge and achievements based on the fact that I know nothing about you, just to demonstrate the way kTimesG argues. It is because of this bias that you believe he is the one who is right, but this is just a common technique in debates called 'argumentum ad hominem,' which focuses on attacking someone's credibility or personal characteristics instead of addressing the arguments themselves.