I've made a few more changes and fixes today.

There was a problem viewing the Community index page using IE 5 under Mac OS 9 or X since last night. It was caused by too many nested unordered lists inside a form. The form that enclosed the index was there to allow for comment moderation; however, to date there's been no significant usage of the moderating or filtering (threshold) features on the site, so I've disabled them. This should clean up the index displays a bit, as well as improve load time, especially under IE on the Mac.

The indexes have also been shortened to show only the 55 most recent threads (not posts, but threads).

This will be made more flexible and user-controllable in the future.

Also, the default contents of the Display Name field for anonymous (not logged in) users has been changed to ENTER YOUR NAME HERE so that people who aren't using their accounts won't forget to change it and don't end up posting anonymously as a result. The system also won't let you post your comment until you change this default value to something else.