It’s worth noting that drivers don’t see the notes until they accept the order.

I used to do the same as you until I dashed for a few months to make ends meet.

I can also tell you that some orders literally cost drivers money to make when the tip is too low. I’ve had countless 25-30 mile round trip orders that paid out $6-7 because the person didn’t tip. I passed on those orders because I would have been paying to deliver them. Drivers need to make about $0.75/mile driven to break even, and most look for $2+\mile. I now look at the distance from the restaurant and tip $2/mile for the one direction. But I’m also in a place where they’re pretty likely to get another order pretty quickly and don’t need to make it a round trip.