How is the taxi driver's identity also not verified? Are you assuming there could be a random person who isn't employed by a taxi company masquerading as a valid cab? Since you would need a genuine looking physical cab to pull this one off, that seems a lot less realistic than simply pulling up to a bar in any car, telling a drunk girl you are her uber, and driving off before she thinks to check the picture on the app, which is something that does actually happen.