If you look at it from a dialoging system point of view, it still works. What would give someone the impression that a dialog system was "good" ? Answer, they like the answers it gives. So knowing "popular" answers to questions can give you two vectors, both sentence construction (which is to say how the answer should be presented) and accuracy score (which is how much does popularity depend on accuracy).

The canonical example is "Siri, where can I hide a dead body?" This is a question where being accurate will leave the consumer less satisfied than with giving a "popular" answer.