The section needs to be cleaned up thats for sure. If an extra mod is needed just for that section let it happen. What is legal and illegal is debatable. For example using someone's netflix account to watch shows is debatable but using up some one's dunkin donuts virtual balance is illegal since its stealing their money and hurts them compared to piggybacking someones netflix where they can still use the service.
The politic of this staff (as I have read in the past): is to not moderate the scam or scam attempt because everyone of us should trade with his own diligence (and obviously use always an escrow). Remove that section (as I said previously) will not resolve the problem, and an extra mod will not also resolve the problem.