True enough, it's just sad that some members here go out of their way to get the box even though they know they have nothing to contribute.i'd just give up the idea. nothing you can do and they know it. if you accuse they'll deny etc. and its not a gift box if you have to put more in than you take. just buy your own stuff.
It should not be looked at as putting in more than you take, but rather, a situation where you are surprised with some "treasure" and replace it with "treasure" for the next member.
Granted, the box may not have something you particularly seek, but that doesn't mean you clean it out and hand-off a worthless tote-o-**** to the next guy.
Hell, who knows, maybe this whole concept is just too mature for some to comprehend (as seen in recent results)