In some countries something like this has been mandatory for a long time.

In Germany and its lapdog Austria there’s the mandatory impressum: fully doxxed whether you want it or not.

In Spain if you handle a database with personal information (like a forum or a blog where people can leave their email addresses along with comments) you also have to put all your data somewhere in the page so people can contact you to have themselves removed.

But hey we have cookie banners at least!