I tangled with an FA over the form yesterday.

She tried to hand be one.
I said "I don't need one, thanks"
She said "Everybody needs one."
I said "I don't I'm global entry."
She said "You still need one."
I said "I use the Global Entry Kiosk, its paperless"
She said "Everybody needs one"
I quietly took the form, which, of course, I didn't need.