I've long been of the opinion that the GDPR was a misstep when the plaintext read of it put default apache logging into the legally-ambiguous space. When you make basic bedrock ages-old web behavior illegal, the web's gonna win, not the law. In most places, anyway. Good luck fairly and successfully policing every single neophyte admin not knowing that the first software every tutorial suggests you use is now illegall…
What I miss the most, and where the most damage to the net has been done so far, is in terms of whois. Without WHOIS it's become near impossible to contact people. Before you'd find an interesting domain, whois, email 'em up. Now that GDPR has made whois illegal, or a high enough legal risk that registrars are chosing to turn it off, there's no way to contact any arbitrary domain. It's made the web a lot more imperso…
I don't consider it a loss that there's one less place my phone number and address is posted online.