Yeah, I can see how that would work if you used, like, names. But the tendency to use fragments of derivations of names completed ruins that effect for me.
So like, I have a retired werepanther character here. His name is "Kareem Okonwo." Now, I would actually argue that his current UN, ~thatoldblackcat probably provides a more meaningful first-glance understanding of the character than something full-namey like "~KareemOkonwo" would. But I'd argue it certainly provides a better understanding than what you mostly get with IC journals, which is usually a fragmentary derivation like "~remkonw" or something.