Remember Find Treasure?

That quirky little dwarf racial ability... It could be used to show semi-rare spawned world treasure chests or quest items on the mini-map. It still exists in the game, but for some reason Blizzard has neglected to have it detect anything in Northrend. There are no world treasure chests to find. There are no quest items that it will detect. It's useless. Did the designers think it was OP? Did they just forget to tag certain quest items as "treasure?" I wonder if there are other racial abilities that became obsolete in WotLK.