Bob Smith annoyed enough Uber drivers in Milwaukee that now he can't get a ride in Poughkeepsie. Maybe that's valid, maybe it's not. But it is pretty new, and I doubt it was in the slide deck when Uber hit up the VCs.
The social aspect of these sorts of things can't help but get entangled with the politics of social mores. Maybe Bob was giving the Uber drivers wet willies. A lot of people would think he caught that ban fairly. Maybe Bob was too politically incorrect for the Uber drivers. Not quite so sure he deserves to be sentenced to hoof it until the Sun burns out. How do we know the bans are of the fair former and not the latter? We don't. It's a private company, they can be as opaque about this as they want.
Good, bad, who knows, but it certainly makes for a completely different landscape.