I've known about Lemstar selling shares over Twitter for several weeks. I brought it up now since he took a spot in a discounted group when he is selling slots on the side for more than a 1/6. I wasn't insinuating that he sold that slot for profit, but by taking the slot, he prevented another CAG from getting it.
Giving him the benefit of the doubt, it's possible he is trying to act as a Robin Hood of sorts with gamesharing. If one was to do this, 1/4 of MSRP would be the ideal amount to sell a phantom for, since the resells won't be used. Selling for less has the seller losing money, and selling for more has the seller profiting, as you see with Ebay sellers. However, if one does wish for more people to get games for cheap, why not tell them of one of the many forums where gamesharing is active?