I have been looking for a discount on Club level at AKL, which hasn't worked out so far. BUT if I wanted club level at YC/BC, WL, or the Poly I could book them with a AAA discount. So it does happen.
Yes, I've had AP and AAA rates on club level rooms. The discounts are always subject to availability. If a category is almost sold out, Disney has no reason to discount.
yes, i just got a good deal on club level at akl, i would book something and THEN look for a discount that way you have a room already...I have never not found a discount befor my trip.