So they setup an LLC, or the owner is a homeless guy who signed the paper for $50, or dozens of other options you could do to avoid

I wonder how enforceable that France thing will be

Anti-spam measures work by increasing cost and friction for spammers, not by stopping them completely. A burner LLC costs more than a burner SIM card, so it's a step in the right direction.

How do you know who runs a company, aren't some European countries tax havens who dont share that information?