Bound =/= Binding So why the heck can't we sell the item?

[Felis]

I haven't tried but can we resell to NPCs?

There's NO difference between 1% bond and 100% bond. This is nothing more than a headache. I think I should have the freedom to at the very least donate equipment to new players.. instead I'm stuck with equipment costing nearly 300k gil.

It's ridiculous.

What you mean is spirit bound. Character bound is 0% or 100%. It is character bound in the moment you killed something with the gear equipped.
Spirit bound just show you if you can change the gear in materia or not.