Editor: The article is great! All we need now is a quote from social media and we can publish.
Journalist: We haven't been able to find anything suitable, everyone thinks this story is satire.
Editor: Then just post one yourself and then quote that! But don't reference your name, that'll be a dead giveaway.
I think an argument could be made to set it to the date of death of the author. I agree with the other guy that it should only apply to commercial works though.
I also don't think that the copyright should be transferable. The trading of ideas is an absurd concept to me. But then us humans do a lot of absurd things so I guess it's just par for the course.