[iamandoni]

I don't understand why there is a controversy at all here. This seems to at least have a logical use case, which is more than we can say for status code 418 (https://tools.ietf.org/html/rfc2324)

[drivingmenuts]

418 is a historical joke, so it doesn't really need a logical use case (ideally, it should be handle the way joke PEPs are handled).

451 is a technical "solution" to a political problem - you can toss logic and reason right out the window due to politics.