Duh, I'm not a blithering n00b.

No other scripted object that counts scripts can see inside my inventory, so why would I think this feature would? o.O
No, my reference to inventory was simply the fact that I can lose things in it - if I don't use a scripted widget to count other scripts that often...well, then that gets lost too if I can't remember what it's named.
Not on something I'm wearing, only on objects rezzed out.
I can't count on being able to rez hair out anymore because SOME hair designers have now taken to including "thief scripts" - they delete the hair immediately when it's rezzed, and report you to the designer as a possible copybotter, even though you just wanted to adjust something or move a few prims around. (For example, adjusting a hair for a furry head usually takes more serious adjustment than resizing.)