Hmm...I've learned a lot about drone laws just from what has been posted in this thread. I didn't realize they could legally be flown practically anywhere over other people's property. It sounds like someone could wreak havoc on a guy's deer hunting by flying a noisy drone (less than 400 feet high) right over deer bedding areas, etc....
It could happen to any one of us. Someone who knows you have food plots could zoom over them at prime time the day before season (or during season) and ruin everything. You would never have any idea that it happened. I can see where drones could be extremely valuable for things like catscratch mentioned above. I am also aware of many worthy industrial uses, such as finding trouble on a power line, etc.. However, I see the current laws as an opening for invasion of privacy and hunter harassment.