"Are most members small / part-time scrappers or do you work in, operate, or own a yard? I'm curious about the type of volumes that people are working with here"

Hi USG I believe you'll find most every size and type here. Me, I'm just a small timer, started cleaning up around the on farm and then picked up a few side jobs. There's others who have their own yards/businesses etc., and some who just pass through