Many of my developers and project managers like threading for discussions. In order to get greater adoption, I've developed an extension/patch that makes the discussion page look like the archives of a listserv. Don't know if this is even worth consideration, but in the spirit of openness thought I would throw it out. If there's time and interest, I'll clean it up and make it generally available - right now it's very experimental - although we're using it here in production.
I've posted this highly experimental patch/extension at http://www.mediawiki.org/Wiki/Extension:DiscussionThreading http://www.mediawiki.org/Wiki/Extension:DiscussionThreading
This extension implements a discussion threading process. This threading will only be seen on the talk pages, unless explicitly invoked in the command line.
It adds a [reply] link on the header line. Each time a new posting is entered or a posting is replied to, the comment will automatically be tagged (and appear in the TOC too). Of course direct editing can occur, but this really makes it a lot easier to organize discussions in a threading view that most are familiar with.
To do (if there's enough interest):
1. Internationalize 2. get someone who knows regex to clean up the parsing of the subject line 3. Assess to see if there's an easier way to do this - I've probably screwed it up royally.
Montgomery County Shield http://www.montcopa.org/ Jack D. Pond CIO, Montgomery County, PA
"Nothing in the world is more dangerous than sincere ignorance and conscientious stupidity." -- Martin Luther King, Jr. (1929-1968)