The main thing that bothers me is players who undercut my, in my opinion, fairly resonable asking price by so much that the cost of making the item actually exceeds whatever credits they receive from the sale. Of course, this is only a pet-peeve. As this is a free market, all I have to do is wait until the, in my opinion, underpriced items are sold and then put my things up at slightly lower than my original asking price. This way, I make a profit, and whoever wants to bleed credits is more than welcome to do so.