Originally Posted by
AnOrdim
As pointed out, the boxes themselves are perfectly fine, the problem is if the game pays out cash etc. That being said, I wonder if you could make an argument that allowing a grey area cash market and not actively stopping it is equal to allowing cash sales. To my knowledge, all other games make a token effort of preventing and/or banning discouraging cash sales. Gemstone does not, even though they've proven they can track other information very easily. So it certainly wouldn't be hard for them to do so. They've instead chosen to embrace the gamble aspect at each major event, with the full knowledge of the secondary cash market in place.
Steam will also notify states etc if you reach a certain amount of sales in their marketplace. Second life has it as well. Those two obviously directly support such transactions with their own software, instead of just covering their eyes and ignoring the cash marketplace going on all around them.