I'm not trying to gain cheap reputation points, but I've been walking through some of the unanswered questions and noticed a trend: a lot of them are irrelevant now. They are irrelevant because they refer to bugs from previous releases that are surely now addressed (or clearly addressed per changelogs).
In a previous Q&A, Adrian suggested that moderators not be quick to close or delete questions. I agree. However, when questions refer to a product releases which are clearly now unsupported (or "old"), those questions ought to be close-worthy.
Further, the SE guidelines for "What topics can I ask about here?" clearly states:
IS YOUR QUESTION ABOUT A BUG?
If your problem is clearly a bug, and you can identify which add-on is responsible (such as a PHP error), we ask that you report it directly to the developer through their official support channels, as there is very little our community here can do to help you. Even if the developer provides official support via Stack Exchange, you must contact them via email instead. Questions which are obviously bug reports will be closed. However, if you're not sure whether your issue is a bug, it's ok to ask here whether you're approaching things the right way.
So, my question is, given these guidelines, is it possible to add a close reason along the lines of the question being about a bug for a product?