Some point out only the things they think are wrong with a photo while others give only praise. I think a good critique should include both. What do you think?
Way, way back when I used to care what people thought, I appreciated being told the things that could be improved and sometimes "how" if I didn't know.
Of course it was my high school photography teacher, so it paid off to care what he thought

... though I would have anyway. Great guy.
I didn't need to be praised since I already thought they were good or I wouldn't have submitted them.
What I learned about DPR way back when the rules were not to post photos except to support a question/problem... was that 99% of the people here only want praise/validation. Dare suggest an improvement and an entire forum clique will be all over ya.
Lol..