Shay > Status Update

So awesome realization!

(Spoiler for those who have not yet read IT by Stephen King)

IT is a Boggart!!! Wait, think about it for a second!
IT changes into your darkest fears! Umm - Boggart
It gets power from your fear. Again Boggart
It lurks in dark creepy places. Also a Boggart thing.
Confrontation or fighting back makes IT weak. Same with Boggart.
IT's true form is unknown. Also Boggart.

Thus IT is Boggart.