Hi- as the admin of both the FB page and the Club's 'official' website/forums, I can tell you that there is rarely, if ever, info directly from the RCF that is on Facebook that is not also here on the forums/website. Basically, our FB page is set up to take an .rss feed of new forum topics and post them to our 'wall'. We also supplement that feed by posting some pictures and updates/links directly to FB, but again it is stuff that is usually found here as well.
That said, a lot of Club members and other area DG-enthusiasts are used to using FB, and post info and discussions there that may not make their way over to the forums or website. If you're looking to get absolutely every piece of info you can on STL-area Disc Golf events and happenings, I'd recommend bookmarking & checking out both on a regular basis.
http://www.facebook.com/STLDGCThanks,
Ted Spies
STLDGC web admin