Sounds weird, but focus more on wiki’s.
I answer many questions here with a simple link to another post which was already solved.
You could argue that every user could/should use forum-search-function before creating a new issue. But my impression is that many newbies are to underskilled to do so.
My arguementation is different. For me frequently asked questions should result in some documentation (wiki,how-to-blog, video-tutorials, etc.)
That would be a closed loop.