I took an Uber a few weeks ago (I don't often) and right when I got in the driver asked me I was new to Uber and if this was my second/third trip. I said no, I had taken it a good amount of times, just not often. He seemed surprised and said I had a 5 star rating, which he thought was rare for riders. At that point I didn't know I could see my own rating in the app but I looked and I do have a 5 star rating. This was only what one driver said in one city but I guess it could be rarer?