When I read his blog post on his reasoning, I can't help but be reminded of the feud between xscreensaver's author and Debian maintainers. Debian maintainers refused to upgrade the app's version and refused to remove the 'For support contact the author's email' notice. The author's fed up with all the support emails he gets from Debian (outdated) installations' users and put in a message prompt blasting Debian. It was very ugly for both sides.
I think that there can be an extension on GPL that says, if you bundle this library and is not using the latest official version from the author, you are not allowed to include the author's contact information. If you insist on bundling the author's email with your outdated software, then you are in violation of GPL.
As for people stealing his code. Sorry to hear this. I got nothing except to try to contact EFF.