If one believes that Google's book-scanning project constitutes copyright infringement, then this guy was making a valid point. Boing Boing, of course, makes a whole host of assumptions, such as that the guy "misunderstands copyright," which is in the title but never supported in the story, and that Google's project is necessarily "laudable."
I hardly think it's a foregone conclusion that scanning books and placing their contents online is not copyright infringement. Personally, I wonder. And, such a project would require extreme methods of digital rights management (DRM) to avoid infringing, even if it's possible, while Boing Boing has historically been anti-DRM of any kind.