Didn't you read the part where he links to a blog post, encouraging people to steal his book?

He was only objecting to the "on google code, where it makes the top 4 search results when you search for my f*ing book"

I suspect he is not the type of copyright holder who enjoys the protection afforded to him by DMCA laws. He just doesn't want to be pissed on his face, please piss on his back only, see?