I like how people in comments are keen to change the world, but I - more realisticly - only focus on gaming the system so I can actually save myself couple bucks right away.
I set pick up and destination, exit the app, open another rides app, wait few minutes for uber to notify me that the price went down.

I only give it initials (instead of full name) and phone number, not even my gender, I rarely rate drivers positively, if it is not a negative experience, I skip reviewing, so they don't know I "like" the service.

When it takes more than a minute to find a ride, I cancel the ride and choose the "others" option, as this is the de-facto the option for "I will just take a cab", so I get inserted on the "churn risk" list.

I use a virtual card that I some time leave empty so payment fail after the ride, and on the next ride I readjust my virtual card limit on the next ride and pay the last bill so I am added on the "poor and miserable riders" list.

I am well protected

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