You are correct that - for many common environments - IPv6 lacks a compelling case for deployment. However, that is not universally true: for those organizations closer to the core of the Internet (with corresponding larger traffic and growth rates), the premise that you can carry all the traffic through CGNAT fails (simply review communications on the nanog mailing list from organizations such as Comcast, T-mobile, ATT, Google, MSFT Azure, Amazon, Verizon, etc.) to see clear evidence of such…. IPv6 solves their IPv4 exhaustion problem and has allowed the Internet continue to grow - if you’re not seeing a similar need, then it is simply that you are not at the core of the Internet.
ignore the gettingmaildelivered blog... one certainly can take active measures to exclude EU visitors as a way of avoiding scope of GDPR. Get real legal advice if curious rather than relying on a blog.
rest assured you would not see major newspapers doing exactly that without them having checked the legality. The analysis in the blog is wrong because the first question to be asked is "is the business within the scope of the GDPR", and _if you are a business in scope_, then you can't process personal data or track/monitor EU residents. However, you are not a business in scope of GDPR if you don't have a business presence in the EU and don't hold out your services to EU residents. Blocking that region demonstrates clear intent _not_ to offer services to EU residents and thus puts your business out of GDPR scope.
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