it would be rude as fuck, but I believe that's in the spirit of Public Domain, yeah. Whether Kopyleft equals Public Domain or not is still debatable. Many people do equate (K) with Public Domain, so it's plausable that a (K) work can be used in that way.
just like how since Lewis Carroll's been dead for over a century, I can now publish a book called "Alice's Adventures in Wonderland" and fill it with pictures of my cock. Nobody's going to sue me (except the legislator's office I leave it in).
actually, is misattribution legal under public domain? I don't actually know. Like could I publish "Alice's Adventures in Wonderland by Lewis Carroll" and fill it with dongs with no legal reprecussions?