The Superformance forum is closed now while the threads are being carefully dispersed to the correct GT40 subforums. It will take some time for me and the other admins to get through all the threads.
However, all the threads are still available. For example, there was a thread this week about Superformance ball joints. That thread still exists, but it is now in the proper GT40 suspension subforum. So, nothing is being lost at all and with this forums' effective search engine the threads will actually be easier to find.