Good point Overread. I think I meant that as "best of a given subject".
I shoot all over the place, so to take me as an example, if I go out and shoot people, I will put what I feel are the strongest images for critique. I am not good at shooting people, it's not my strength, but thats the area I need the most improvement.
From what I have seen though, is people putting stuff and saying they are not very good, and not asking how to make them better. How can anyone help, if they don't even know what you are asking? Often, it's just "I'll throw these in". Instead of saying "I know this is out of focus, but what do you think of the composition"...