I think this is a good change. I like to tip drivers that provided good service, but I don't want the hassle of cash. This seems like a convenient way to do it.
BTW, to my knowledge Uber drivers can only rate you right after the trip (any Uber drivers correct me if I'm wrong), while you can rate and tip the driver later. If you're worried about "revenge ratings", just wait a while before rating (and not tipping) them.
I have never tipped them with cash so far and have a straight 5.0 rating (although admittedly I don't use them very often). Just be polite, don't mess up their car, and don't waste their time by letting them wait at pickup.
This is spot on. I recently started driving for Lyft and Uber in my spare time and have enjoyed the experience with both. You cannot get another trip request until you have completed the Drop Off and Rating of the current rider.
I do realize there are some bad apples out there giving 4 stars to people not tipping, but that isn't going to get worse with the new app. In fact, it should get better. Most drivers will do an actual rating on the customer as they won't be sure if they got a tip right away or not as the app won't let them see the trip bill or get another ride until they do the rating.
Also, I had my head in the sand about both of them until two weeks ago, because they only returned to Austin on Memorial Day. What I do know is that both have rolled out new driver apps that some of the "old schoolers" have resisted using. I don't understand this as I find both apps to be good, but Uber's is clearly superior. It works great.
As for tipping in general...
I don't like it either. I want to give a tip for exceptional service, not average service. If the car is clean, the driver is prompt, and we get there safely, that's good service and I might tip a dollar and I might not. However, if the driver is courteous, polite, talkative, has an exceptionally clean newer vehicle, I will tip a lot more.
This has been the case with me. I am a professional engineer by day and a very outgoing, talkative person in the car. When an UberX passenger sees me roll up in a 2013 Lexus that you can eat off any surface of, they have a great experience and many tip me and compliment the car without it even being suggested.
EDIT: And to be clear... if a passenger doesn't stink, doesn't keep me waiting, and doesn't do anything negative to my car, they get 5 stars. They don't have to talk, they don't have to look good, they don't have to even be "nice".
If they are prompt and don't stink up or mess up my car... 5 stars. Drivers doing otherwise damage their own reputability in my opinion.