Yes, looking at your projects page, I can totally see how you are in a position to judge him.
Everybody's entitled to have one. Did I try to suppress him expressing his opinion? No, I just piled mine on top.
> It doesn't take a chicken to judge an egg.
"Goes to credibility, your honor", as they say in legal tv series.
I don't know about chickens and eggs, but I believe that it sure takes a good programmer to be able to judge another. It's a technical field, it's not something really subjective. So you have to know your stuff in order to judge what someone else does --if anything, we have too many misinformed opinions.