I think I am getting credit for mine. The most I have gotten paid for them though was like twenty cents. i was putting an image with every post. I don't do that anymore because it seems to be a waste of time.
all I ever got is a penny per photo. so if you respond to 100 discussions and you upload a photo. you got 1 dollar not counting any you upload on your own discussions, or comments. looks like it can add up.