User blog comment:Samium/Nico Robin, human in a world of characters (Essay)/@comment-66.188.67.214-20170110011818/@comment-27923483-20170208025825

True, this is a quirk

EXCEPT!!!!! that is a realistic 'quirk' which doesn't make her any less of a human being.

If you take others quirks like Zoro's zero sence of direction, or Usopp's cowardess, or Sanji's love-sickness. those traits are written to be deliberately cartoony.