I disagree with you Just.
You can't judge everyone with the same criteria.
If you are a newbie, you know your work is not the best on earth, but is usless to hear it from others. What do you want us to say if we see someone recently started (Maybe as me)? "This is crap. The outlines are wrong. Bad proportions. You should change your shadowing technique cuz it doesn't work good."? Sorry if I'm incorrect, but that's not the way to teach, and even worse, to learn.
Nobody need negative coments, not even a Pro. And let me say, supportive criticism is way too different from negative coments. (As for example, When I reached here I was told to leave outlines if I want to improve, at the same time I was being congratulated by the same person.)
<Smiling until death!>
<Sonriendo hasta la muerte!>