I once got in a forum knockdown drag-out with a guy who insisted that CRT shaders were useless because CRTs were analog, so there was nothing to emulate.
I think Guest’s shader soundly proves him wrong.
I am a chef. Someone once told me what they had made for dinner and asked me if they had made it correctly. I said “Did you like it?” They said “Yes.” I said. “Then you made it correctly.”
If you like it eat it.