This is a suggestion that I have posted in the PW official discord and seem to be well received among the community judging by the vote turnout.
As we all know, market manipulation especially using PWE price history system is easy considering anyone with two devices and two accounts are able to fabricate virtually every item that they can get their hands on. At first, this may not seem to be an urgency considering that the frequency of this happening was relatively low. However, particularly lately when more people seem to be using Byte Coin (as indicated by the decrease valuation of World Lock), this method becomes more enticing for this group of players to abuse the flawed mechanism.
The impact of this is, soon or later, player base losing faith in the highly useful automated price tracker that is supposed to never lie and be reliable at any time. This may also lead ultimately to players neglecting the use of PWE due to its highly risky situation with everyone tossing price value of any items sold through PWE.
A great and efficient way to fix the flaw in the system is by introducing “1-hour PriceGuard” system. Any transaction fulfilled (seller -> post items -> bought -> consumer) within 60 minutes of posted time may not reflect on the Pixel Worlds Item Price History. This virtually prevent players from abusing the loophole with the current system as they would have to wait for one hour if they want the ‘fake price’ to be reflected on Price History on that specific item. By creating a window of one hour, every other player who monitors or is looking for that specific item may snatch the item and get it for a significantly low price without harm to the actual price valuation since the ‘incredibly low price’ is not to be reflected. This, not only safeguard the market value integrity but also, serves as a punishment for people who attempt to manipulate the market for personal gain regardless of the harm it leaves for the community.