I LOVE Moodle, but I'm curious about why there is any development for a forum module? Why not focus on Course Content delivery and just build integration to more extensive forums like PHPBB or VBulletin, or others?
It seems to me that Moodle is a best of breed for open source e-education delivery, and should focus on that rather than spending the time and effort on forums that aren't as comprehensive...
Let some of the others worry about developing the forums. That is one component of Moodle that isn't very unique, original, or comprehensive. And it tends to distract time, efforts, and resources from the core Educational Content Delivery Application.
Just my thoughts...
What do you think?