Answerama is causing an influx of quickie questions with one-liner answers. I have put up a few post notices on questions, to try to convey that we would like answers with more information. I used the closest post notice I could find (example):
We're looking for long answers that provide some explanation and context. Don't just give a one-line answer: please explain why you're recommending it as a solution. Answers that don't explain anything will be deleted. See Good Subjective, Bad Subjective for more information.
I picked it for “We're looking for long answers that provide some explanation and context. Don't just give a one-line answer”, but the rest is off the mark, and the irrelevant bit about the “Good Subjective, Bad Subjective” post is confusing.
Proposed wording that would be appropriate here:
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 explain anything will be deleted.