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just curious, why is the link "apple.com/?hn" ?

Because http://www.apple.com was submitted 600+ days ago and HN does not allow reposts.

Because the link has been posted before, to get around the duplicate detection you append meaningless GET params.

More because http://www.apple.com/ did not opened the Tim's note, while http://www.apple.com/?hn did. It seems any random GET param is indeed meaningful in this case :)

Works for me without the GET param. Maybe it's just because you're returning to the page?