How is this detrimental to those with an unusual name? I ask because I have an unusual name (I've never met another "Leland") and I never set my name to be unsearchable, and I've not had any problems because of this. What bad things are going to happen?
If your name is Mike Smith or Chris Wong or Jane Lee, you can murder and rape and pillage with the confidence that once you are out of prison, you'll be "anonymous" on social media - you can hide in plain sight.
On the other hand, if the spelling of your name is unique in the digital world, as mine appears to be, everything you say and do online can be traced to you individually. (By employers, for instance. Who want to know how old you are, or whether you're married, or how you spend your spare time. To pick a bland example from among hundreds.)
I find your idea pretty shock. I never thought of that. But then again, if there is a crime, there is certainly an evidence. The thing is that evidence is hard to trace. For example, hair and dead skin. it's just hard to find - you can end up with 10000 individual hair sample on the crime scene.
It's just unfair, users aren't on equal footing with respect to privacy. anyone you send a resume to can search for your facebook and know for sure it's you, for example. (just one example).
