I have chatted Outside of Forum with The Geek and we both thought of some ways a tutorial forum could be done but I think The Geek is too busy with other things like writing new articles for the site and doesn't have time to code them at the moment*
Some Simple Ideas**:
1) Rename "wiki" to something more friendly like "User Edited Tutorial Articles" instead of wiki as the word "wiki" is something that is not as widely recognized as the word "Forums" is.
2) Integrate the wiki into the forums somehow to enable discussion of all articles.
One big problem with the wiki right now is there is not any discussion feature and it helps to have feedback on an article.
One way to accomplish this would be to have another forum labeled "Tutorials" where the new topic page for it actually creates a wiki article and a real topic containing a link to the wiki article and lets people reply with their thoughts on it.
Then on all the wiki pages, there could be a discussion link that goes directly to the topic for it in the "Tutorials" forum.
* This is an assumption that may or may not be correct. Only The Geek knows for sure what The Geek does.
** We both thought of other variations on those ideas but they are not much different then these so it's not really worth listing them.