Is it time to start calling out bad cyclists?

To elaborate, a bias that a taxi driver is probably going to drive like a moron has saved my teeth a few times. But if that bias turns me into an asshole whenever I see one...well you get the gist.

You can't control how they drive - I don't think anyone is going to persuade them to use their indicators, even if the controller is located only an inch from their hand - but you can control how you react to them.