This is it. There's a blurry line wherever something should be the registrar's prerogative. The more on the "personal" or "local" scale, the less it should be in control of the registrar.

Though, from a certain academic perspective, I can maybe see some idiot making an ignorantly in-good-faith argument for something like personal names needing to be controlled at the registrar level. Never mind that all of the registrars are evil or that most people share a name with someone else in the world. It ironically goes hand-in-hand with their evilness that they should have the power to deny one party the use of their own name due to the incidental, unrelated, but preemptive use of that name by another party.

Said as the top search result for my firstname-lastname amongst at least 7 such people that I'm aware of, one of which I know is also a software developer. I only continue to preemptively register accounts under my one and only true name to avoid receiving their false and deceitful spam when they forget their email domain is Yahoo, not Gmail...

I know, you might be thinking he's are doing it on purpose to punish me for being more popular. I could see that if the email I was getting was porn or scams or whatever. It's not. It's mortgage paperwork. It's personalized cake decorations. It's hotel reservations. This dude is the worst at maintaining his data I've never met.