Before it was simply called the "Forum," Kurzweilai.net's user bulletin board was called "Mind-X." Around 2012, the site upgraded to a new server and new UI, which necessitated creating a new forum. The users, including me, simply created new user accounts and kept posting. However, the change meant that none of the content we had written in Mind-X carried over.
There used to be a saved archive of Mind-X that anyone with the URL could access, but I just checked it and see that it is no more:
It really is a loss since it contained a huge amount of content dating back to 1998 I believe, much of it very creative and thought-provoking, and which we could still benefit from reading. Former users of Kurzweilai.net and I have spoken here about the severe problems the site had for a time, but it seems we forgot to mention the site's Good Times, when the forum was not dominated by rudeness and hardline politics, and all sorts of zany, creative, and intelligent people with different backgrounds and perspectives felt safe to speak their minds there.