There are several slots that we think could/should be added (ear, secondary, cloak, waist) to go with tradeskill items that we already have. There are also several tradeskill items that need a white adorn slot still. Baby steps and all that. :O
Doubtful. More along the lines of "lack of common sense" for that one. You have to be 110 crafter to put a useless adorn on.
Actually, the Nail of Experience is the only adornment that doesn't require level 110. And they are adding white slots to tradeskill gear that don't presently have them. Might even be in tomorrow's update. So things are getting fixed. Now we just need a few more slots added to some of the adornments to match our tradeskill and harvest gear and we'll be set.
