Yes I do post photos on mylot. But I don't upload photos like crazy, I only upload photos which I think are good. I do upload photos on a regular basis but generally only 1 per day and I also see that it's not been posted before.
I do it also. I upload only in my interests if a have some interesting photos that relats with it. I can't upload in to a respons because I don't have 500 posts (yet :D) and myLot dosen't let me do that.