I thought that was BY AN EXTREME LEAD the all-time BEST website April Fool's joke EVER! I can say so because I am an expert on fools (see: name)
You guys committed to it so much, which was what really did it. If you only changes the theme and some images, and let people post and all that, it wouldn't have been nearly as great. Also locking out nearly all your content for almost a day was really ballsy and risky, but I think it led to a greater belief factor for the noobs who fell for the trick. The flashes and movies submitted were great and the BBS posts were also hilarious.
Good job NG fools