Wikipedia talk:Categorization and subcategories
I think this is a bad idea because it encourages overcategorization. It encourages people to add half a dozen categories to an article, instead of the most appropriate one. This is important - the more categories an article is in, the less meaningful they become.
This is a debate that should be held some time anyway - in my opinion, certain classes of categorization are undesirable and should be avoided. In particular, any categorization by gender, skin color, or sexual or political preference (unless, of course, this is directly relevant to the person we're talking about). I do believe this obviates the problem that the "all or nothing" rule is intended to solve.
It seems topic articles are a good exception, as you state on the page. Radiant_>|< 09:48, August 23, 2005 (UTC)