Food delivery service DoorDash came under fire in recent months for its practice of skimming tips from independent-contractor delivery drivers, a practice it may now change according to statements from the CEO. The service operates through an app which guarantees drivers a specific payment amount for each delivery, depending on region, driving distance, and other factors. On the customer end, a delivery fee is applied atop the cost of whatever food they ordered, but there is also an option to tip. However, DoorDash would not pay those tips to the…