This question is an exact duplicate of:
The following automated response was given to this question:
We're looking for long answers that provide some explanation and context. Don't just give a one-line answer; explain why your answer is right, ideally with citations. Answers that don't include explanations may be removed.
If this response can be applied to questions as well as answers, shouldn't the text be changed from answers to posts?
I'm not marking this as a bug or feature request yet, as I'm first trying to determine the rationale behind having this apply to questions as well as answers. If it should apply to both, then I'd think the message text should be altered. (I'm not sure how often this would apply to questions; this is the first time I've seen it in such a context.)
Update: Thank you for the duplication. None of my searches before I posted this, based on the wording of the message, turned up that question.