Aware may be the wrong word in a literal sense, but yep. It’s less looking the other way consciously and more understanding in their bones that the town was built with It infecting them, feeding on them, and at the same time helping them succeed as a whole to keep growing and thriving so It will always have that supply. Most people know SOMETHING is very wrong, and a fair amount of them know about the clown throughout history, but it’s all just sort of unspoken. There are also way more examples of crimes being committed by people without any specific intervention from It. Like the Adrian Mellon scene, there are some where It is seen nearby or feeding afterwards, but even when It’s dormant the town is still riddled with crime and pain. It’s a pretty great critique of the kinds of systematic issues plaguing the US, down to the specifics of racism, misogyny, and homophobia being rampant. The book ends with a massive flood ripping the town to pieces as It dies, so they don’t get away clean from their own crimes.