I've also been playing around with DokuWiki to create a kind of a
wiki farm - not a real wiki farm since in my project only a private
namespace is created for each user. I tweaked auth_createUser() in /
inc/auth/plain.php to automatically set ACL settings for the
corresponding namespace and addLogEntry(), getRecents() and
getRevisionInfo() in /inc/common.php to allow RSS feeds and
changelogs per namespace. For my project, that's enough: http://
www.qwik.ch (still a bit under construction)
If anyone is interested in how I did it exactly, contact me.