If I go into a store, buy every single item in it, stand outside thier store, and sell it for a 100% markup, I'd get arrested. People like these find a market section (for sake of example, stims). Spend all day on it buying every single stim that goes up, and sells it for 100% markup. People on WoW did it, and people on WoW got banned for it. I don't see the problem here....