You know, the more I hear about this idea, the more I enjoy it. Personally, I don't really see the point of the categories system - you get everything mixed together with no context that way, and I don't see any way it can be made to work so that you can do a search for multiple keywords, like "Jewish", "Authors", "Died 1945", "Females". Heck, I imagine that if you tried to put a category of any of those together, some well-meaning person would probably delete them anyway, claiming they weren't specific enough.
The only thing is that it should be kept as simple as possible, some of the proposals I see are too complicated for "ordinary" users to understand. We shouldn't require that a user be familiar with complex metadata tagging schemes just to write articles - even if those schemes are the widely adopted standards on the Internet at large.
Regards, - Craig Franklin
------------------- Craig Franklin PO Box 764 Ashgrove, Q, 4060 Australia http://www.halo-17.net - Australia's Favourite Source of Indie Music, Art, and Culture.