Looks more like a rust generator!Looks like a holesaw was used, but why? Maybe some kind of rust proofing?
The scratching was caused by a door guard that was on from a previous owner. So I’m not too sure if the damage was that bad, I don’t have any contact from the door into the body anymore.Also, from the scratch marks on the quarter panel, it looks like your door's rear edge is actually touching the body as it opens and closes - a likely indicator of serious body repair that may be associated with that hole. Which I agree is not factory. Show us the other side?