There's a difference between adressing problems of the code and addressing the problems of the coder. Which is I think what Ovid was referring to.

For example, if I make a simple mistake in my code and you tell me it's because I need a haircut and a shave -- is that productive? Would it be better if you insult my intelligence or my education? I can, however, understand criticizing someone for not trying, and I can understand criticizing code for a multitude of reasons.

I can tell you (this is a general "you", by the way) that you're wrong without being arrogant or abusive about it. But if you can't do the same for me then I don't think it's me that needs to grow up.