I don't necessarily object to this.  Adding a new category is pretty simple.  Finding all of the things that shouild be in it and recategorizing them will be very time consuming, though.  I'll try to get to it when time allows.

If it is to be done, now is the time to do it--and if changing the category isn't too difficult, it might not even take that long.  It is still generally manageable to go through the entire archive(I went through it just last week to make sure my isometric and oblique asset collections were complete), and I imagine the amount of work would be similar.  An hour or two, maybe, and you could probably farm out some of the work.

Shameless plug: There's also my collection User Interface. It is pretty complete, apart from some stuff I might have missed, and it should be easy to update it in order to find the missing entries.