On the main page for the forum, underneath the threads and a "+ Post New Thread" button, and underneath "Forum Information and Options," there's a section titled "Thread Display Options." It looks like, as of this writing, the default setting has been set to "Show threads from the… Last Day." But you can change your setting using the pull-down menu there. After making your choice, click on the "Show Threads" button to the right. Then you can see every thread as far back as the start.
The thread prior to this one was in November 2013, and before that in October. Maybe this forum will pick up with upcoming congressional elections plus the start of the next presidential season.