Lifetime for human copyright, 20 years for corporate copyright. That’s the golden zone.
replies(2):
https://drewdevault.com/2020/08/24/Alice-in-Wonderland.html
https://drewdevault.com/2021/12/23/Sustainable-creativity-po...
If an artist produces a work they should have the rights to that work. If I self-publish a novel and then penguin decides that novel is really good and they want to publish it, without copyright they'd just do that, totally swamping me with their clout and punishing my ever putting the work out. That's a bad thing.
The thing that'd set apart these companies are the services + quality of their work.