The Snopes article you mention that "backs you up" says that there is a color coded tag for the stockers but that the order of colors is not universal, and therefore not at all useful. It also directly discusses why it doesn't matter and why you shouldn't go sharing the news with everyone you know, since this advice is just as likely to give you an older loaf than a more recently baked one. Why would you mention an article that not only contradicts what you are saying, but also says that it isn't worth spreading the news?