I wonder if Sirius and Gavin would be willing to make Bitcoin.org a small wiki with just a page or two. If they use single-signon for the forums and for the mainsite then they could restrict editing of Bitcoin.org's mainsite to trusted forum members.
It would get rid of the problem of Bitcoin.org's mainsite being centrally controlled by only a few people without risking the site getting completely vandalized by spammers and trolls.
It certainly is a hub, but in the spirit of the free market if you, or anyone, can build a better mousetrap then that would be great. Go for it. I think competition is a better route than any movement towards 'eminent domain', pun intended.