Around here I think tree services haul wood to the curb in hopes that people will haul it away. There are a few situations in more urban spots where there is no choice but to stack on the curb, but if there is a yard and the wood ends up on the curb, every time I have asked the guys say they put it there either for the township or trash haulers to take away, or in hopes that when they return to haul it, it is already gone. I can understand why the guys in the other 6 trucks thought the wood was up for grabs.