That works great in a non-dysfunctional team. In many teams, communication is so toxic that anonymous feedback is the only way to express grievances. I've had t

That works great in a non-dysfunctional team. In many teams, communication is so toxic that anonymous feedback is the only way to express grievances. I've had team meetings where my manager scolded us for 90 minutes because he received a poor rating in an anonymous review from his subordinates. He was surprised that no one had expressed disatisfaction; yet he never encouraged open, honest, reprisal-free communication.