MWB, I think the "Reply with Quote" is one of the biggest problems we have here. It seems that some people think that is the only way to reply to a post, so we end up with a dozen photos re-posted so the poster can say, "Nice pics!" at the end. What a waste, but there is nothing I can do to change that.
Ace, I will look into the option to post photos at the medium size by default. I'm not sure I have the control to do that, but I'll look around.