News Flash! OMFG! iTunes DRM-Free files has your registered email address embedded still.
Umm. Why would this matter? Who cares? Well, other than file-sharers and the like.
Seriously. Why should you, I, or anyone else care that the files we purchased to play on our own electronic devices has our own email address embedded?
Should I worry that I will be able to track who I am or something?
Should I worry that Apple will know that I am listening to the music that I bought from them?
Should I worry that Big Brother will be able to track my movements because of this?
(Everyone knows that Big Brother is watching us through the eyes of children, sedating us with Corn Flakes, and controlling us through rainbows. Everyone does know this, right?)