Did you look at the wiki? I answered plenty in there.
Further I progressively built out all of those 20 pages (http://codex.wordpress.org/Category:WPMU) and built out the http://codex.wordpress.org/index.php?title=WPMU_FAQs&oldid=31619
We even had a wiki dedicated to wpmu at http://www.wpmuwiki.org/ but that was never given the prominence it needed to have a chance at being effective. The domain expired. No one updated http://codex.wordpress.org/index.php?title=WPMU_FAQs to restore the content.
Adding more to pages and pages of duplicated threads is a waste of everyone's time, including yours, Mike. So I'm not going to do it.
I will be very happy to add to something sane though: just give us a decent platform to do it from. It does not have to be a wiki.