Well it really depends. There is no legal requirement for the company to fire an employee based on customer ratings, so it should definitely be as it is ... up

Well it really depends. There is no legal requirement for the company to fire an employee based on customer ratings, so it should definitely be as it is ... up to the employer to deal with this. Something more. One time I happened to have bad ride with uber and by clicking on the low star button I got many options including the one that I was looking for : "Bad route". So you can justify why you left that rating. On the other hand I've always missed the opportunity that I have in restaurants to complain about my food quality or even grumpy waiters. This is a nice thing to do, that nowadays I use foursquare for, but it seems very practical for taxi drivers. I don't want to go deep, but for example if you get a taxi driver from Lisbon airport by hailing you have high chance to pay double the price to the city center ( usually it costs 10 euro, but some guys will bump it to 18 if they see you are a tourist ).