I have duck for about 90% of my riding just because it feels more natural and for the amount of switch riding I do, it's just plain better. But if I am jumping in a CAT or doing turns with 30+ cm of fresh, I go back to a 0 degree on the back foot and that seems to work for me (on a regular cambered board, I keep the duck when riding reverse camber). I still play around with the numbers here and there, same with my stance width, but right now I am liking +12 on the front and -9 on the back.
But I agree with the OP that people should be open to experimenting with their binding angles. Many of my friends have only ridden one set of angles; the ones that were set up for them at the shop. They carry their angle set up to each new board, without attempting something new or questioning the qualifications of the person who set it up originally.