Just because the registration is blocked if you don't specify which part is the result of human creativity, doesn't mean the copyright on the part that is the result of human creativity is forfeit.

Copyright exists even before registration, registration just makes it easier to enforce. And nobody says you can't just properly refile for registration of the part that is the result of human creativity.

[–] JackbyDev@programming.dev 6 points 12 hours ago* (last edited 11 hours ago)

Yeah, a lot of copyright law in the US is extremely forgiving towards creators making mistakes. For example, you can only file for damages after you register the copyright, but you can register after the damages. So like if I made a book, someone stole it and starting selling copies, I could register for a copyright afterwards. Which honestly is for the best. Everything you make inherently has copyright. This comment, once I click send, will be copyrighted. It would just senselessly create extra work for the government and small creators if everything needed to be registered to get the protections.

Edit: As an example of this, this is why many websites in their terms of use have something like "you give us the right to display your work" because, in some sense, they don't have the right to do that unless you give them the right. Because you have a copyright on it. Displaying work over the web is a form of distribution.