When a customer places a no-tip order, and say for instance 3 drivers in a row turn down the order, the app should send the customer a message or a screen saying something like " Based on your 0$ tip, no drivers are currently accepting your order. Consider tipping." And then cancel their order, refund their full amount(as low as it is) and send another screen or message telling them 3 drivers declined the order for the reason of no tip. Get on it doordash, your drivers deserve it.