Public domain software is not open-source?

[Rick Moen]

Quoting Matthew Flaschen (matthew.flaschen at gatech.edu):

> Philippe Verdy wrote:
> >You forgot to give the copyright notice (independantly of the licence
> >providing grants of use or transmission and forwarding)... You are in
> >trouble because of violation of your own terms by yourself!
> 
> The Berne convention does not require a copyright notice.  He can not 
> violate his own license by omitting one.

He could not violate his own licence anyway, because -- obviously -- he
doesn't _need_ a licence to use a creative work whose copyright he owns
outright.  _Other_ people need some sort of permission; a copyright
owner's rights are inherent unless and until he/she transfers title to
someone else.  

(I am actually assuming and hoping that Philippe's post was facetious.)