@Sandra The GPLv3 takes copyright and gives the right to make copies to everyone, while also forbidding the implementation of artificial scarcity.

If you manage to release something correctly into the public domain (good luck with that really, this currently-incomplete declaration is the closest we're going to get once it's ready https://wpdd.info/), the problem is that unless no-one learns of the work, a business is going to take the work and apply artificial scarcity to it.

Therefore, the only way to ensure artificial scarcity doesn't happen it to license copyleft under copyright.