I don't mind coating on my fixed blades with steels that are prone to rust like 1095, 1075, etc.
I can't stand it on folders that aren't prone to rust...just don't see the point of it. I have 8cr13mov, aus8, S30V, S35VN, D2, M4 and probably one or two others and they're all satin finish. Only the M4 is showing minor signs of patina ( GB ) but I kinda like it.