I understand where your coming from with this.. If done I
Would reccomend separating it from the forum.. It can
Lead to lowering the authority of your content If not properly moderated..

The idea in general is pretty good zab.. I would suggest making it
It's own individual site... Maybe more focus on hosting
Blogs with either your approved sub domain or there's with redirected dns..

This is another topic I'll include next time I
Message Ya.. I see where your going with
The idea and you have the system in place here.. I know a better forum niche to mix that with and things to redeem the points for..