The true meaning behind the answer.
Have you noticed how often people say to someone who asked a question, "That's a good question"? Well…fairly often not true.
Of course, many questions are good questions, but the response usually means that the responder doesn't know…doesn't have a good answer — or any answer at all…totally stumped.
"Good question" often has nothing to do with the quality of the question. It seems to be more about the ability to craft an answer.