When you open a thread older than 60 days, you get a nice alert, along with a statement that you may not reply to the thread and to start a new topic. Interestingly, the software seems to be ignoring that.
The thread in question, although it doesn't seem to be limited to a single thread: http://www.gamedev.net/topic/626072-what-do-i-need-to-learn-for-a-zork-clone-in-c/