You can't get downvoted by drivers for refusing to tip. They don't find out if you tipped until after they've rated you, unless you actually tell them, "I'm not tipping you."
Saying we need less comments of some sort does not equate to saying "screw them!"
I can't DV, so you all can create an aggressive environment on HN if you want, but it won't help you IRL if you say this. If you want to create a toxic environment for discussion, that is up to dang.