You say:

"I disagree. The MiniStore is not the first case of iTunes knowing what we listen to. OK, so it's now actively listening to what we're actively listening to, but the Just for You section that debuted in the last revision to the iTunes Music Store sends to Apple info about the music we've bought or own to construct itself."

You're wrong. The Just For You depends on your purchases, not your listening habits. As can be seen, iTunes sends no info if the MiniStore is hidden. If it did, then what you say above might be correct...

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Read my blog: Kirkville -- http://www.mcelhearn.com
Musings, Opinion and Miscellanea, on Macs, iPods and more

Actually, the "Just for you" section of ITMS needs you to:
a) buy a song or album or
b) tell them that you "already own it" or "don't like it".

Which means that YOU NEED to do something for the store to know what or who you are. The "mini-store" do it by itself, which is completely different and wrong IMO...

go Rob, go!