I was looking for a homeopathic relief for my mountain cedar allergy that the OTC stuff doesn't help. The only place that had any left in stock was Whole Foods and I reluctantly went there. While my friend swears the stuff works for her, I saw no difference in my symptoms for the expensive and unarmed trip to that store.
Actually, in the grander scheme of things, the Whole Foods sign is a lot better than the similarly placed signs on places like Sprouts. Those are black on clear glass and also on the sliding doors. You REALLY have to be looking for them to even notice them. I find that most of the places that hang signs like that are businesses where I find little to no value in shopping to begin with and having to go unarmed is just the icing on that cake. Bezos and his food brand don't have to worry about my being a customer - he doesn't sell anything there that I want.