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I fear this is the only action that content owners will pay any attention to, and I do not mean, stop buying and continue pirating the media.
Ignore their new products, on the Internet and in real life.
Put pressure on your favorite artists and writers.
Tell your friends.
If metadata is such a concern, one simple command with ExifTool http://www.sno.phy.queensu.ca/~phil/exiftool/ can recursively delete all exif info in your whole image collection. And no, I will not post it can be just as destructive as rm -rf /