Over the years I’ve heard commandments like “Don’t use white”, “Don’t paint in Venice” and even “Don’t paint boat sheds”. Similarly “Never use black” is the advice some salesmen give my students, planting indigo and sepia in their palms instead because “These won’t kill your painting”. It's just that both those colors are ready mixed and contain black, so they are not the solution if black is a problem. My own fad is “Only use single pigments” because mixing should be done by the painter, not by the manufacturer - and black is just as good as any. (Just don't use this advice as a commandment!) By the way, this is Dyrhólaey, "Doorway peninsula", in southern Iceland painted with lots of Ivory black and some Raw sienna, Burnt sienna and Ultramarine blue.