I could be mistaken, but I wasn't aware that this was a system to SELL unused tix. It was put in place simply to fill empty seats.
My experience has been that U of L doesn't administer any system that competes against its own to market and sell tix. They don't have that responsibility and indeed, it works against what they're trying to do which is make $$$. However, they do assign value to having butts in the seats...