And this is the explanation of the rider ratings system they receive via the app if they opt to read more:
Understanding your rating
Ratings allow us to ensure a great experience with Uber for both riders and drivers. Just like you rate drivers, drivers can rate riders on a scale of 1-5 stars after each trip.
How your rating is calculated
Your rating is an average of the ratings you've received from drivers, and is measured out of 5 stars. Ratings are anonymous, so neither you nor your driver will ever see an individual rating you've received.
Very few people have a perfect rating, so don't despair if your average isn't 5.0. Things that seem small to you can matter to your driver - it's easy to accidentally slam a door if you're not thinking about it. Knowing a little more about the things that affect a driver's happiness can help you be a 5-star rider.
Short wait times.
Drivers love when riders are ready to go when they arrive at the pickup location. That includes making sure the location you entered is actually where you'll be.
Courtesy.
Simple but true - it's important that riders treat drivers and their cars the way they'd expect to be treated themselves. A positive attitude and considerate use of the car go a long way. That slice of pizza can wait.
Safety.
Drivers want to make sure everyone in their car is safe. Drivers shouldn't be encouraged to break any laws. For example, every rider in the car should have their own seatbelt.
Why your rating matters
Ratings foster mutual respect between riders and drivers. This strengthens our community and helps everyone get the most from Uber.
Just as you expect drivers to treat you with respect, drivers hope to feel the same acknowledgement from riders. A high rating is about more than bragging rights among your friends; it's a sign that people enjoyed their time with you. Keep up the good work!
Understanding your rating
Ratings allow us to ensure a great experience with Uber for both riders and drivers. Just like you rate drivers, drivers can rate riders on a scale of 1-5 stars after each trip.

How your rating is calculated
Your rating is an average of the ratings you've received from drivers, and is measured out of 5 stars. Ratings are anonymous, so neither you nor your driver will ever see an individual rating you've received.
Very few people have a perfect rating, so don't despair if your average isn't 5.0. Things that seem small to you can matter to your driver - it's easy to accidentally slam a door if you're not thinking about it. Knowing a little more about the things that affect a driver's happiness can help you be a 5-star rider.

Short wait times.
Drivers love when riders are ready to go when they arrive at the pickup location. That includes making sure the location you entered is actually where you'll be.

Courtesy.
Simple but true - it's important that riders treat drivers and their cars the way they'd expect to be treated themselves. A positive attitude and considerate use of the car go a long way. That slice of pizza can wait.

Safety.
Drivers want to make sure everyone in their car is safe. Drivers shouldn't be encouraged to break any laws. For example, every rider in the car should have their own seatbelt.
Why your rating matters
Ratings foster mutual respect between riders and drivers. This strengthens our community and helps everyone get the most from Uber.
Just as you expect drivers to treat you with respect, drivers hope to feel the same acknowledgement from riders. A high rating is about more than bragging rights among your friends; it's a sign that people enjoyed their time with you. Keep up the good work!