Longest-running IIJM-type thread is located
here. Actually, that one is a weeny compared to the one that hit 250k+ replies that the same forum locked and archived because VBulliten couldn't handle it at the time. The original started in 1999, and I got a post or two into it soon after.
Synopsis: replying to the thread lifts the curse from the previous poster, thereby imparting the curse on yourself.
Just thought I'd throw some fun facts out there.