Tastespotting - what happened?
Ummm, dbcurrie, trademark law says a trademark owner must police rights or lose them. Copyright law says no such thing. Your work can be infringed by a million people, and you will still own your copyright and you can still sue the million and first infringer (though the other infringements might affect your damages or ability to claim wilfull infringement.)
Not that there aren't good reasons for authors to protect their works, and lots of good debate about where lines should be drawn.
Just saying.

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