A fair number of sites hosted and operated outside the European Union reacted to GDPR by instituting blocks of EU users, many returning HTTP 451. Regardless of whether you believe GDPR is a good idea or not (that's beyond the scope of this comment), the disparity in statutory and regulatory approaches plus widely varying (often poor) levels of 'plain language' clarity in obligations, and inconsistent enforcement, it all leads to entirely understandable decisions like this and more of a divided internet.

Thank you to those who have tirelessly run these online communities for decades, I'm sorry we can't collectively elect lawmakers who are more educated about the real challenges online, and thoughtful on real ways to solve them.