Some recent posts on a popular travel forum. This is exactly why I have said drivers putting up tip signs are just asking for 1-star ratings, or for passengers to contact Uber to report you. Post #1: Today, I got into an UberX in the Los Angeles area and the driver had sign on the back of the front passenger seat of his car soliciting tips. I regret not taking a picture of the sign because in my 200+ rides this is the first time I have ever experienced just aggressive tip solicitation. The driver had a 4.7 rating. He spent most of ride telling me about how awful Uber is to drivers and how they have cut fares by 43% in the area and how he relies on tips just to get by. It was the most awkward Uber ride I have ever had. I did not give the guy a tip. Post #2 (in reply to #1): I would absolutely 1-star that ride. Post #3: Quick chime in about a recent ride. The driver couldn't stop talking about how good he's had it and how generous people have been etc. basically trying to extract a tip via guilt. Gave him a four star review but should have given one star. However , after contacting uber to recap the uncomfortable experience uber refunded the entire fare.