I ask a lot of questions:
The Uber training, apparently, is that driver's should only ever rate their customers a 5, or a 1. That's it. A customer is either great and a 5, or an asshat and a 1.
I don't know who told you that, because that's not what I was told. I drive for Uber, and there aren't specific 'codes' for ratings.
On lyft, on the other hand, 5 means good, 4 means needs work, 3 means "don't match us up again" and 2 and 1 mean "recommend deactivation", 1 means "dangerous".
