[jpmelos]

> Is there a reason ALTER TYPE name ADD VALUE new_enum_value wouldn't Just Work for the first example for 99% of use cases?

I'm sorry, we don't have any examples in the article about adding values to enums, so I don't know to what you are referring here.

> Yes, that's true, but also very rare?

It is rare, indeed, but we just have a strong inclination towards having a clean schema, so we do prefer to clean up things that would otherwise be unused. But I understand that many people would prefer to leave them hanging there, even if they are not going to be used in any way.