I will second this. It seems almost every time I see a car pulling some bonehead maneuver in traffic, it's an Uber. Almost every time some jackass is sitting in a lane, blocking traffic with their hazards on, it's an Uber. Almost every time I see someone jam on their brakes and dive for the side of the road, it's an Uber.
I know Uber is cool and cheap and convenient for its users. But the drivers are amateurs, and it shows. They don't know where they're going and will pull over anywhere, blocking traffic, to pick up their fares. Because of the draconian, passenger-centric rating system, the drivers are terrified of offending their passenger and will become a nuisance on the road to keep them happy. Taxi's are at least marked, so you expect them to be pulling over in traffic. But Ubers look like any other car, leaving other drivers to wonder why this guy is suddenly slamming on the brakes and double parking in the middle of a busy street.
Uber sucks for anyone not using the service. I'd like to see the taxi companies step up their game to counter Uber. But unfortunately, it's the taxi industry's fecklessness that made room for Uber in the first place.