I have no problems with sharing my taxi either. They are scarce in Hefei, and if you are out in the middle of nowhere you are really throwing someone a lifeline by taking them on board.
My real beef with taxis here is that driver, especially at night, is often not the person to whom the car is registered to i.e. not the guy in the photo on the dashboard. There have been times when I have wondered whether the person driving even has a driving license. I remember on one occasion a lady struggling to restart the stalled engine admitting to me that 'really, she was not a good driver at all'. This kind of musical chairs with the taxi doesn't seem to happen in the larger cities like Nanjing or Shanghai, which I put down to tougher law enforcement.
My second complaint is about seatbelts. So far I have witnessed five car accidents in Hefei and three of them involved taxis. Yet no one seems to wear seatbelts, not even the driver. Often the passenger seatbelt so twisted up that it is unusable. And when one can buckle it, it is usually quite dirty, so that one is forced to chose between one's shirt and one's life. If anyone here has any pull with the local government, I would urge them to recommend a seatbelt campaign: billboards, tv ads, fines, etc. to try to raise the level of awareness.