+1 for @Daniel. “Sticky” threads at the front of each topic with especially relevant content would be nice.
Some forums offer a way that people can submit articles they have written that go into more detail on a certain topic and are more of a one-to-many rather than a many-to-many distribution model. Contributors are vetted by the moderators before they can submit an article and the moderators must approve the content before it posts — this keeps rants and crackpots out of the picture.
As for our moderators — I think you do a very good service to all of us. I have been “corrected” by moderators a few times (not on this site — yet) and there are two ways to respond: I could be offended or I could learn. I always seem to come around to learning from the experience though sometimes it takes a little time. You do a great job.