Re somewhat unimportant problem: It depends. In our code we have constants integers used as kinds marker that get stored in database. Messing them would break

Re somewhat unimportant problem: It depends. In our code we have constants integers used as kinds marker that get stored in database. Messing them would break things bad. And we have them everywhere. And we have maybe over a thousand of them. Had we had this enum from the beginning we would now probably have a code base in a slightly but significantly better shape.