Their answers have been consistent since before Uber added tipping. Besides, I'm having a natural conversation with a normal human, at no point did I feel they

Their answers have been consistent since before Uber added tipping. Besides, I'm having a natural conversation with a normal human, at no point did I feel they were lying to me. It also makes sense that someone driving for uber voluntarily would actually appreciate the value proposition of the service (for a driver): make money when you want. Which is exactly what they say they like.