While originally I thought this idea seemed a bit overly complicated, I could see this as being worthwhile as a just-for-fun awards (or maybe with some kind of small prizes) for the NeoLemmix Community Pack.
It's too complex for an official contest, though; but if there's interest, I see no reason why it couldn't be run as an unofficial one (though I'm not going to run it myself). You might want to consider allowing more than one submission per user if you're going to have that many trophies though, as we don't have that many people actively creating levels at the moment.