Should we add a notice to the tags wiki of those who have reached eol in bold, saying that if you're asking about this distro your question is likely to be closed because we don't answer such questions, something like that. So when the user is tagging his question, he'd notice that we no longer answer these questions.
This is one way to reduce the number of closed/unanswered questions discussed elsewhere on meta.
I have edited the tag 11.10 like so:
Questions about this version are likely to be closed because it has reached its end of life.
I left the wiki untouched, because we only want the users to see a brief warning when they pick the tag. If you agree with my edit please accept it and I will edit all the EOL tags for you, if you want, you don't have to worry about it. There's no harm in giving it a try.