Noticer

[Michiko]

: A behavioral scientist who notices particular patterns of behavior in particular groups of people AND refuses to attribute these patterns to mere coincidence.
: An expert in pattern recognition.
~ The [noticer] is [reviled] by the [ruling class] elite because it is their odious behavior that is being exposed by his pattern recognition. Thus he is often smeared as a Nazi or White supremacist.

[Becky]

A person who notices or perceives something; an observer.