It is funny how he will still argue this. He knows perfectly well that Tony does not have specific permission from every author. As this is not possible to get. Most demos don't claim to be PD (as retro-nerd has pointed out). Infact those that even reference to this make specific statements that they are not.
AndreasM's website is about as legal as all the other sites he sends takedown notices to. Yet he will probably continue argue the moral high ground no matter.