Actually, I'm assuming you are reffering to the thread "Getting bored.....". The thread was moved to our ranters section by another of the moderator staff earlier today. Usually when threads are moved to that section, you should recieve a private message from the moderator that moved the thread about it being moved to that area of the site, and how to gain access to that section of the site.
To join the ranters section of the site, you need to goto your
UserCP and find
Group Memberships. Once there, simply scroll down the list of groups available to join until you see "Ranter". Select the circle that says "Join Group", then scroll down until you see the "Join Group" button and click it. You should then be able to access our ranter's forum,
The Pirate's Parley, by scrolling down to our Group Forums.
Hope that helps. ^^