Q would leave breadcrumbs, because he needed to be as vague as possible to sound like he knew what was going to happen, right? The people who would interpret those breadcrumbs were called bakers. Yes, I know breadcrumbs are from bread that’s already been baked, but that’s what they decided to call themselves to create an Us vs Them feel. So the “bread” in this image means there are things to be interpreted or reinterpreted yet.