I constantly get survey requests, by email and even US Mail, about services that employees have given me. Sometimes they tell me to expect one, as at a car dealership today on routine service.
It would sound unnerving to me to be an hourly employee expecting to be rated on every encounter.
As a consumer, I hardly have time to answer these.
Imagine what it must be like for an Uber driver.
This is a little like the review site problem for a business, but brought down to the level of an individual employee, often at a relatively low wage.