I am not being drunk or dizzy or something alike here, but please don't take it bad for this proposal. Though I must comply, it is pretty funny for a serious web page, like Numista is.
I was just checking my participation in adding coins and modifying coin info on Numista. I have currently added only 0,65 % of all active coins in Numista database (Catalog: 133359 coins). This is truly long term and painstaking work. I would propose a some kind of Numista hall of fame with top contributors to our common cause. If I am unable to get any admin rights on at least confirming "tags" (which I believe is probably the "lowest" security right on Numista), maybe something like this would be nice.
Have some couple of hundreds of coins at home left to add.... My target is 1 % hehehe.... I challenge ya'all to get there before me.
Best regards to all of you my kind fellow Numista members and thank you for all confirmed swaps!
Yes, it's been tried before and as you saw, it just turned into "I'm gold, you're bronze, I'm better than you" and some intelligent member pointed out, it didn't take into account other areas or support like identifying coins or giving advice to new members.
Only thing that remains is your actual contribution score on profile page, and as you pointed out, you can calculate how much of the current catalogue you added/modified.
PS: The fact that I modified roughly every 6th coin scares me.