It is possible to use categories like:
- defines or challenges the mission of Consumerium:itself
- helps Consumerium itself develop:itself
- helps Consumerium itself research:itself
- helps Consumerium itself publish:itself
But adding such categories is actually messy, and it means paages will be very often in multiple categories. Tags work better than categories for a great many things includingt this I think.
Also if you shift off mediawiki your categories won't necessarily stick, while the links will. For instance to use tiddlywiki for Publish:namespace is fine if you did it with links, but not if you did it with categories.