One who initiates or participates in the intense study of jankiness. I.e., studying whether or not jankiness is a state of being, or a set of behavioral choices resulting from a janky (inanimate) environment.
Jankologist: "Is this a janky pen, or is the quality of this pen a result of jankiness inherent in its builder?"
Pen Builder: "Do you like my mullet? I'm from Pierre Part!"