iInstacart announced that it would change its tip policy, in an attempt to protect its shoppers from getting "tip-baited.".Tip-baiting is a gross kind of switcheroo where customers entice shoppers with the promise of a large tip.After delivery, they reduce the tip amount or even remove it altogether .In March, Instacart said that 0.5 of orders had their tip amounts reduced after delivery.After this change, any customer who removes a tip will be required to leave feedback explaining why.Any customers who "consistently" remove tips will be removed from the platform.The change comes the week after four U.S. Senators wrote a letter to the Federal Trade Commission about the practice.