IIRC the CEO(?) of Duolingo was asked what he would choose if he had to choose between a more effective language course and more gamification. His answer was ga

IIRC the CEO(?) of Duolingo was asked what he would choose if he had to choose between a more effective language course and more gamification. His answer was gamification, because the best course doesn't help anyone if noone shows up. So at least they know that it's not the best way of learning a language.