A "statistics" or "stats" button to every submission. It would show all kinds of statistics, e.g. the amout of views the submission got over the period of time it has been online - same thing with diamonds, favourites, downloads etc. Perhaps it could be placed next to the "Schemagic" button, or somewhere around the "Download" area?
Personally, I would love to check these stats from time to time.

If I recall correctly, a very similar feature has indeed been available on here a long time ago, but was disabled for some reason.