In an effort to reduce the number of questions posted as answers, comments posted as answers, recipes posted as answers, and the like, it would be nice if new users saw the following dialog the first time (or maybe the first three times) they post an answer:
Are you posting an actual answer?
Please make sure you're posting an answer to the question being asked, and not a question, comment, or communication with another user.
[Click here to proceed]
Using the usual StackOverflow fire-engine red background, of course.
Looks like this has been implemented. See here: Suggest dynamic help text for new answerers