This feature kills the mod for me. Along with hat trading. Stupid TF2 stuff. Useless. In my opinion his add-on would be incredibly more useful and something that I would personally use if it was simply a system to increase the customizability of your avatar via hats that you can equip at any time. Just give a simple little GUI with a list of hats and preview images and allow me to put any of them on at any time. There needs to be a mod like that.
Didn't someone talk about adding that feature already?
Anyways, the greater avatar customization wouldn't be a bad idea... We've needed more headgear for a long time.
But if we're going in that direction, you might as well throw in the clothes_overalls, and other odd things for the rest of the player body. Snowshoes, for instance. Or other crazy stuff, like idk, Sonic the Hedgehog-style back-spikes.