I loved Lyft's tipping feature and used it over Uber because many times I had to take my cats to the vet and it was nice to be able to tip the driver for the extra hassle. Same was true if I ever took Lyft while taking my sick wife from her work to home and she threw up in the car.
Except, my Lyft ratings kept on tanking, and I didn't even know. At one time I tipped a guy nearly 60% of the tab. Despite of this, my Uber rating were 4.8 and Lyft ratings were 4.0.
Eventually I figured out, it is the way Lyft implemented their tipping mechanism. All tips are combined and given to the driver at the end of the week. I mean what is the point of tipping then?
Since then I only give cash tips.