5. "more accurately, it's not part of the Uber business model" In response to In response to 3 Wed Jul-22-15 03:01 PM by Damali
meaning, the drivers are taught not to expect them and the passengers are told its "not necessary"
so i'm not thinking about tips when i'm driving for Uber
short answer: you are not a dirtbag you don't have to tip unless you really truly feel compelled. even then, we are told to refuse first, and only take it if you insist.