For those saying this idea is bad, "we have discord", "or it's buggy" that's just lazy and bad reasons. If you buy something under this market there would obviously be a double confirmation system similar to the gambling one and if you think this is why we have Discord you're wrong. Discord trading just encourages scamming, private DMs is big influence of that and most new players don't know their item prices. Most users in the Discord who have the PC role aren't very good at it and give wrong estimations a lot of the time. An auctioning system on where players can take offers for a certain timeout is much better and much more user friendly instead of spamming the same gun for hours on hours in the Discord.