One thing I think will help are the new
WikiPosts, already being tested in two fora (American AAdvantage and Alaska Airlines Mileage Plan). As they are in Beta, the mods are the ones creating and updating them, but eventually they will become community property.
For example, in the American AAdvantage Forum, the moderators have often inserted and kept up to date "moderator notes" summarizing the contents of a large, frequently posted, thread. Now a WikiPost can be inserted between the thread header and the first post with succinct information and links; they can easily be updated, much as the FlyerGuide Wiki can, and as the Wiki anyone will eventually be able to do the updating.
My understanding is it took some significant work to create these, but now that we have seen the first of them we'll see how the Beta testing goes and eventually spreading to other fora.
(One initial and brief one is in the new AA "Main Cabin Extra" extended seat pitch product thread
here - simple, but gives people the link they need to see AA's current accommodation policy.)