Maybe I'm wrong, but when you write a story, it is automatically copyrighted. But you should add the (c) 2023 by Valerie Willis. If you don't, and then somebody uses it, you then have to challenged it, maybe with lawyers, which is expensive. If you don't try to fight it, then 1. they get away with it, and 2. because you didn't fight it, someone else can claim it as their work by adding the (c) 2023, or 3. it falls into public domain, because no one cared about where the info came from. If it ever got to court, the Judge would probably throw it out! There has to be a computer date stamp on the information to prove when the document was written or it has to be published in print somewhere to prove a date, but then again, how does the anyone know how you got the information?
I think the whole system works on a fear of getting sued, but the chance of getting sued are so small and the chances of losing are so small, nobody is worried about stealing information.
I saw a person write a story, it ended up on a News website, and THEY copyrighted the story, with the note at the bottom that no one could use or re-publish the story! It wasn't their story to begin with, then they copyright it! Jerks!