This is mostly a follow-up/bump of noindex and nofollow "bad" questions?, but I have a slightly different proposal.
It's been pointed out by some people * that questions without answers get indexed in search engines, and that's annoying when you're searching for something and think you actually found an answer.
My proposal is to noindex questions that haven't got an answer yet. Perhaps in conjunction with adding the questions to an XML or RSS/Atom sitemap once the noindex has been removed, to let search engines know when they can index a question. Could that work?
Citation from one of some:
My experience with SE is limited, trying to find an answer to something a bit more technical than what I normally deal with. Seemingly somebody has asked the question on SE. Good.
Except there are all the threads not answered and closed for further discussion. Yo, moderators, if the question doesn't belong on your site then REMOVE the thread or mark it so it doesn't get indexed. Does me no good for find a question identical to my own and no answer.
I do understand poor questions get deleted, but perhaps the process is too slow?
Does anyone have any better suggestions on what would be a better way to avoid getting the "annoying/unanswered" questions indexed?