Surely anyone who owns copyright in a work has the right to destroy that
copyright work. They don't owe it to society to maintain it. There have
been many cases where famous literary figures have destroyed their own
drafts or personal notes, or have requested that such documents be
destroyed on their death. I shudder to think how one can introduce, let
alone police a law that required that (say) everything I ever wrote must
never be destroyed.
Professor Charles Oppenheim
Department of Information Science
Loughborough University
Loughborough
Leics LE11 3TU
01509-223065
(fax) 01509-223053