I recently (January through March, I guess) reorganized at least the warrior armor set categories. New: "(class) set items" categories. New: "(set name) set" pages, to list all the nominal sets (Furious, Savage, Wrynn's ... of conquest, Wrynn's of Triumph, etc) to which the set bonus applies.
To that end, I kinda by fiat decided: individual set items go in "set items" categories, not in "set" categories. Nominal set pages and Collection set pages go both in "(class) sets" category and "(collection name) set items" as they get created. Thus, there is a "Gladiator's Battlegear set items" category ... and a "Gladiator's Battlegear (level 70) set items" one. It was getting awkward to find a given set for all the items listed in the same category.
If you feel I have done wrongly, or have comments, please do let me know. I only discovered you might be interested pretty much after it had become a fait accompli. --Eirik Ratcatcher (talk) 00:09, May 5, 2010 (UTC)