He probably sees it as a form of "sticking it to the man". He probably did it as a joke initially and is now digging in his heels. He remembers the 80s when hacker culture abounded and software could have lots of inside jokes and lawyers were nowhere to be found.
Now that software has gone "mainstream" and copyright and patents and lawyers and courts and legal red tape has been rolled out everywhere he is refusing to conform and is instead sticking to his guns.
Now that software has gone "mainstream" and copyright and patents and lawyers and courts and legal red tape has been rolled out everywhere he is refusing to conform and is instead sticking to his guns.