I often hear presenters and educators label questions as "excellent," "insightful," or "thoughtful." I cannot help but wonder how these individuals would describe questions that do not merit a label at all. They'd never call them out as "stupid" or "obvious," but do they believe that? And how is the audience member to feel when they're question doesn't earn praise from the speaker?
As an educator, I want questions. I need questions. I rely on them to get a sense of what's going on in my classes. For example, if a student in a course has a question about an assignment I need to revisit my instructions. If students ask about topics I may not have planned to include in the course, perhaps I need to do so at some point. That may be now or in future iterations of the course.
That's why I consider all questions as good questions. And I don't need to label them as such.