oh it really does. I have a piece of art from awhile back that I still like to look at sometimes that I guess would count as vent art. I didn't know of the term at the time but it was very much a sort of mental purge of negativity and depression.
Maybe I'll dig it out and give it a scan and post it here sometime. But yeah, most of my pieces I get an idea of at some point, and mull it over for awhile before starting my creation process, but that piece just sort of...happened.
https://www.paperdemon.com/art/view/36935