The discourse so far has been pretty polite, aside from that last crack about "lifting" the content. It would be fun to send it back, but the reasonable respon

The discourse so far has been pretty polite, aside from that last crack about "lifting" the content. It would be fun to send it back, but the reasonable response is just to reiterate the previous points about there being no copyright holder, and they will be happy to comply once there's some legally binding reason to do so.