Are you voting before you upload and checking the little box that says you want a c-index...if not your images won't get a c-index...we have a choice now.
I decided to stop calculating the "relative C-index" (RCI) at the same time that we made voting optional. The reason is that the RCI was generally always a set number offset from the C-index (around 5 points). This didn't seem like a very big deal from that perspective. What do you think?