well, they are either stealing game cards and selling them for plat. or they are buying the 3 month cards for real money (they could be winning them) but a 3 month card is like 50$. for the price of 50$ you could buy like only 10k plat i think. so what people are doing is selling the game cards for plat, wich makes them more plat in the long run. i am not sure but then they probally sell the plat and buy more game cards and re-do (if they were smart they would) (more money that way) but they might just be them lazy e-bayers who dont want to spend there time earning the plat but buying it and throwing the game off its course.