Asking people to turn comments into answers doesn't work. I've seen it tried on far too many sites, and people who leave comments as answers did it
because they don't want to (or think they can't) turn it into a full answer. (Consider this a sign of the low quality of comment-answer content, btw.) Turning someone else's comment into an answer
yourself is better for the site, but still doesn't do anything to discourage the comment culture: in fact, it
validates the notion that we should leave incomplete answers and expect others to do the hard work. —
BESW Sep 27 at 8:04