We have that in place for open source software. No one is contacting the authors on GitHub they just grab and use it.
Second thing is big bad guys will see if someone copyright is just a person that doesn’t have means to fight for themselves in court - you still have to sue them and still have to get initial cost of lawyers.
Last but not least there is a lot of content that you don’t want to be easily tied to the owner because history is showing us how that can be used to hunt down people having “wrong ideas”.
We have that in place for open source software. No one is contacting the authors on GitHub they just grab and use it.
Second thing is big bad guys will see if someone copyright is just a person that doesn’t have means to fight for themselves in court - you still have to sue them and still have to get initial cost of lawyers.
Last but not least there is a lot of content that you don’t want to be easily tied to the owner because history is showing us how that can be used to hunt down people having “wrong ideas”.