I know this ideas has been proposed before, but the latest changes were years ago.
I believe there should be a wiki-type page for Mint in general. The IRC channels constantly have the same questions over and over, and it is genuinely difficult to point those users to the current tutorials section or an off-site wiki.
I would help to get the ball rolling any way I can. I know a lot of other Mint users would do the same. The Mint community is growing so large that a suitable, searchable, editable site needs to be maintained. We can't rely on the tutorials to stay up-to-date with the constant changes that are implemented. It would indeed be a _lot_ of work, but it would be well worth it in the long run.