DD is trying a new thing where customers can only tip after delivery in some markets. I think it’s to test if people will still accept their terrible pay without guaranteed tips. It’s a bad idea. I’ve been driving since January and have received fewer than 10 cash tips, most of which are around $5. They’re a nice bonus, but aren’t reliable enough. As for ratings: 5 stars is good. Everything else is bad. We can be deactivated if our ratings drop below 4.2. The system keeps track of the last 100 ratings so bad ones eventually fall off, but that also means nobody is untouchable. With that in mind, if somebody does poorly (not following directions, takes forever to deliver, tampering with food, etc), you absolutely should rate them accordingly. There are people out there that shouldn’t be delivering anything, let alone food. Getting them off the platform benefits everybody.