Contributors giveaway - suddenly seem pointless

So with all the new bundles there's hundreds of new bundle-key giveaways which are not allowed. Mods remove these giveaways when they're still on but once it ends, nothing apparently happens anymore as the person who made giveaway gets his "feedback" and amount of $$$ in created giveaways.
I just saw a profile of a guy who made clearly only bundle keys giveaways and now has over 100$ credit for contributors giveaways and there's nothing to do with it.
I understand that mods have sh*tloads of work in here and they do it for free but is there any way this can be maybe prevented? Otherwise - this great "contributors giveaway" idea would become completely pointless.
Any ideas?

Btw. sorry for whining about it, I just wanted to say what's on my mind right now ☺