Oh, that glitch. Let me guess, you were looking around in 2005 or so threads?
Way back when we had moved over to KHI from kh2.net, glitches kept appearing, like always. For a while, that was a popular one. A thread would appear, brand new, and there'd be no post in it, just what you see right there. :/ Weird and creepy.
I don't think there's a way to bring them back though. I haven't seen this in a long time, though this may happen just because the forums grow. Sorry about that, I can understand wanting to see some old threads. Unsure what else to tell you, seeing how there's not much that I can do about it, it's an old glitch where we couldn't fix the threads, just delete them and try fixing the actual glitch itself.