Our faqfaq is all about asking questions but there is no topic on how to write good answers.
For new user it may be helpful to find (or to direct them to) some guide on what we think is a good answer.
Maybe even more important, we need to make transparent what kind of answers we feel are bad, i.e. will be downvoted or may even be deleted.
Please give us your opinion so that hopefully we can then direct new users to this discussion here and include the results in our faq.