Outside of the prime targets of hotels and airport duty free, I only saw it twice back in August, once at a merchant at Paddy's Markets (Haymarket) and at JB Hi-Fi. At JB Hi-Fi, the terminal was under our control the entire time. (I was guiding a friend through a purchase with his MasterCard.) At the merchant at Paddy's, the proprietor was holding the terminal and I had to prompt him to press cancel. (From my observations, the proprietor seemed to be somewhat DCC aware and inclined to opt in the unsuspecting.) The Marriott at Circular Quay had replaced its terminals, but the reception offered full disclosure and ability to select the billed currency.

I believe use of contactless payments generally will remove the chance of DCC occurring. Does anyone know if the Pays do not support DCC at all?