I've seen a few questions now that have 0 answers, but have long comments that for all intents are trying to answer rather than clarify the question.
For example, this post.
When I see a comment that has an answer in it, I (and I'm sure others) feel like it would be a waste of my time to actually post an answer for the question because the information is already there. However, this could lead to some questions going without any formal answers, lowering the percentage answered and other statistics unnecessarily.
Is there a policy about this kind of comment? Should it be discouraged? How important are statistics like "percentage answered" if the questions are still getting the relevant information posted to them?
EDIT: This is a better example.