I don't think they're "nearly random", they're just inconsistent. And it's a better solution because it works today and doesn't require a central authority to m

I don't think they're "nearly random", they're just inconsistent. And it's a better solution because it works today and doesn't require a central authority to manage (and when you're talking about the tens of thousands of distinct government bodies in the country that central management overhead is the thing to optimize)