Usually the responsibility falls on the individual to not reveal their true name, though. Once known no-one gets to litigate knowledge of it. Usually one must change their identity so much that their true name changes as well, or forever be vulnerable. Everyone does have a right to privacy, to not be tracked and surveilled, what’s being discussed here is an extension of that that argues it’s unethical to retain any data about anybody period, even with their consent. I’m having a hard time making that much of a leap.