Just as obviously people like me know which items price gougers are vulnerable on and which they are not. It works best on items that have a shorter desirability span and a nearly infinite supply rather than ones that will be desired forever and have a limited supply. Othni was a great example. The first time it appeared I undercut by 25% and made a couple of million pp. The second time it appeared I made a fast million pp, undercut by 50%, watched two rice gougers try to buy me out, and undercut the original price by 75%. They removed their Othni from sale (their high prices served as advertising for my low prices) and waited me out. The third time it appeared I offered a full set price of 20K right off the bat and didn't make much pp. The market was over and those who attempted to monopolize the market were stuck with their overstock. (I wasn't. My monthly pp needs are low, I don't use Krono, and I was happy giving away a dozen or so sets.) The same thing has been done with certain collectables. For example Pinky Toes have been overpriced on my server (30-40K pp). I have 20ish. I'm certain at least 4 others have 20ish. I can offer 10 at 15K, drop to 10K if I sell most of them. If others get in on the action the price will be driven down to 10K and stay at 10K so long as any of us are in the bazaar with the lower price. You can't prevent price gouging but you can reduce income from it periodically over the short haul. If a trader relies on bazaar sales each month to buy krono you can toast them. See the Hunt Bros. and their attempt to corner the silver market. The hidden supply was too vast (coin melting and Indian dowry silver) and the rewards for burning the market too high (sell before the market tanks).