Doesn’t matter. The important thing is that I can look them up or resolve them easily. Without looking it up can you tell me the difference between HTTP 451 and 510? If not they’re no more useful than I’m a teapot. But I can identify both of those uniquely and figure out where they’re coming from.
This is a great example where humor can help: I love http.cat because the whimsy makes it easier to look up and remember status codes. Not exactly the same as jokes in code, but an example of how more humor can be better than less humor for practical, human-factors reasons.
