Recently while working on the Nintendo Answers Wiki I came up with a solution for this problem. I found that if the answer page is used by the asker to describe their question and the comment system is used to answer the question it seems to work better. Also since the page has a description it can have categories added to it, so even un-answered questions can be categorized.
To add this system to your answers wiki you need to do these things.
- Change MediaWiki:Answer_this_question to "Describe your question:".
- Enable the comment system on the answers wiki.
- (Optional) Create Template:Ans on the answers wiki to put on questions that have been answered.
Note: The only downside to this system is that the category Answered questions will automatically be applied to all pages with descriptions.