Filling up a tank of gas in Chengdu has been causing significant pain recently A few days ago, I passed by a gas station and saw that the price on the screen had increased by one-third compared to the beginning of the year. When I browsed the X timeline, I saw @ tankdotcash saying that they could refund a portion of this money. The mechanism is to charge 3% tax on each TANK transaction, 2% to the vault to exchange for ETH, and the remaining 1% to Pons for refueling. I bought a receipt and uploaded it for review. If I transfer the money back, I will receive a 12% refund if I don't hold the coin. If I hold the coin, I will receive a After reading it for the first time, what I care about is not whether the story is told well or not, but who will review this receipt. A receipt is a paper item that naturally has room for fraud. Manual review is a bottomless pit, and machine review is a battle against the cost of fraud. This is the real threshold for such projects, not the tax rate design, but the verification of real consumption. Can this be done faster than fraud Currently, the Coming Soon Treasury is still empty if the trading volume drops and the tax revenue is insufficient The first data I most want to see when it goes live is not the total amount of cashback, but the proportion of rejected receipts Information disclosure does not constitute investment advice DYOR