There were a couple of things that were happening and a couple of rumors. The things happening were that Doc hadn't participated for quite a while and there were some spam attacks on the board. The first time I tried to access the forum after it was gone, the was a notice saying that it had been permanently taken down for spam attacks. The next time I tried to access it, the entire site was gone.
I don't know anything beyond that. As for the rumors, they are, well, rumors.