Asking questions? Isn't that what Help & Support and Site Stuff are for?
The phrase "House of Knowledge" makes me think more of a repository or running library of those things the site has always been in dire need of: walk-throughs and step-by-step how-to's. No doubt, as with some I've posted here already, they have their beginnings in those other Forums, but I think it's easier to look for something like that here.
And there are such things as forum PMs, you know. I've had two in my phpBB Outbox for months, and I think it's because nobody takes advantage of that feature of the forums (yet they never miss a chance to complain when they don't get a Fap-mail alert -- anyone else find that curious?). Most people who've joined in the last year or so, seeing how much doesn't work around ImageFap, likely presume it's one of those things. Believe me -- it works and works well. (It even worked during one of those times when the techs were having issues with the forum's "skin.")
If anything, it might be worthwhile to have a Sticky here in HofK where long-timers and "folks in the know" can both 'register' their willingness to help, and not just via replying to posts in any of these forums. Starting with the Admin and mods, of course.
BZT