A nice idea, but altering the screenshots to fake how many reports you have made is trivial. See below for an example, taken seconds apart. The only way you could do this without the risk of cheating would be to have theymos report every users' reporting statistics, and something tells me he probably has more important things to be getting on with.

I guess you have changed it in HTML. It's great that you have pointed it out. I didn't thought about it.
I think Theymos will only have to check one random person out of top 3 (or whole top 3) - none will risk red trust for cheating to get 3-10 merits if he will know that there is a possibility that it will be checked.
So we got stuck and we can not start with competition until Theymos or any moderator (if he has access to this data) will post that he support this competition by checking at least 1 person.
since I haven't use my Smerits this year, I was waiting for this kind of opportunity to happen. I just want to say I will sponsor the 3rd Prize.
Thank you. I've updated OP.