Aerik Sylvan wrote:
At the risk of asking a stupid question: what is the status of category intersections?
At the risk of making a stupid answer: you could install the Semantic MediaWiki extension and make queries like
{{#ask: [[Category:Actor]] [[Category:Director]] }}
SMW will query for membership of subcategories (thus it'll match members of Child actors) , to a configurable depth limit. The nifty thing is you can display other properties and categories of matching pages.
See demo (temporarily) at, http://www.semanticweb.org/wiki/Sandbox#Category_intersections
Cheers, -- =S Page