The nonsense is that this is a solution looking for a problem. It's scratching an itch by trying to move a mountain. I am certain that nobody in the history of the podcast has ever complained about the sound quality of the theme song or audio clips, especially after they switched over to 96kbps. Whereas there is no doubt that any technical solution — especially any of the ones proposed, including switching to VBR — would inconvenience a whole lot of people.

(By all means, Marco should continue working in this direction if it interests him. If Apple ends up adding those ID3 tags to their MP3 decoder, it will have a net positive impact on the world. I just think it's a rather foolish endeavor.)