I use UseMods for lean choir community sites and as choir website CMS: To the loged-in choir members, it's a community site and everybody can contribute. To the public, I hide all (well...) evidence that it's a wiki.
Started using UseMod 0.92, and I love it for certain applications. And I still haven't found everything it can do for me. Wonderful!
Thanks everybody for this great piece of software! -Karsten