One common theme in these discussions is the wiki. I think the same points have been made throughout the years I've used jriver but I don't think anything meaningful has changed, some concrete suggestions on the wiki and how it relates to the forum;
- move the wiki under the same URL as the forum so google searches hit both in one go
- give all interact users edit rights, perhaps after they reach some level (post count, time served or whatever)
- consider applying a moderation model if you don't want everyone to contribute directly
- if the wiki doesn't have a decent wysiwig editor, get one (as wiki syntax can be rather obtuse) or change the wiki to something that has one to make it easier for people to edit without the wiki syntax hurdle
- rewrite the landing page (which is currently a bit of a blank slate -
https://wiki.jriver.com/index.php/Main_Page), consider adding some guided paths like "getting started"
- come up with a better theme, it's about as close to plain text as html can be at the moment
- consider simply deleting any page marked outdated (IMV wikis always degenerate into a mess because no one ever wants to delete anything, IMV prefer ruthless deletes after tagging obsolete content)
- consider a separate published "documentation" bundle, i.e. a buildable documentation package that lives in a source control system (c.f.
https://readthedocs.org/), this could be more strictly focused on actually using the app (main reason = make it easier to write some content offline)
- look for a forum plugin that performs searches against the new combined wiki/forum domain (to help the user find related content), this would be useful in any given thread as a sidebar as well on the new post screen
given that the recommended approach to using the forum is "use google to search", the first option is probably the one that would have the biggest impact on visibility of the wiki today. If you combined it with the 2nd option then perhaps you'd see some real traffic through there (it would be interesting to know how much traffic hits the wiki btw, is it heavily used today? I get the impression it is not)