Brad Johnson at 2012-06-19 12:38:29:
I would think that the easiest way would be a log-in screen for the forums where, as part of the login process, you have to check a box stating that you agree to the terms and conditions of the GITS forums.
These T&C would simply state that all users of the forum agree that you Scott, GITS, other users of the forum, etc. will not be held liable for any reason, now or in the future.
This allows someone who is not comfortable agreeing to the terms to opt-out of the process up front.