To be clear, this is half a joke. Cl-vaultless is a real password manager and it could be proven secure (if someone was interested in auditing the code and instructions). The joke is the fact that it's not easy to use, so there's no way it could ever become popular (perhaps appropriately, since cl-vaultless requires considerable knowledge to use properly). Also, many websites still demand that passwords contain non-alphanumeric characters and not be too long (I've bumped into that insanity recently).