Two weeks ago I requested an Uber. The driver assigned to me was 35 minutes away, with traffic. I got a message from him saying that he was "too far" and that I should cancel the trip. I was deciding whether I wanted to do so (I needed to get to the airport) and apparently I took too long, so he canceled the trip himself and gave the reason "Rider was not wearing a mask". I called "diamond" customer support and they said, "Don't worry, the system already figured out that was not possible so you won't be flagged or anything, and here's a $10 credit." Seemed like the system worked well. But now whenever I order an Uber it makes me take a selfie of myself in my mask, to prove I'm wearing one.
The moral of the story is that Uber's blacklist (or *any* blacklist*) can be innacurate. What sort of appeals process do these accused people have? If what happened to me is any indicator, you could have proof positive that the accusation was false, and it wouldn't matter. I'm not saying my situation is as bad as someone who is denied their livelihood; only that flaws likely exist.