Agreed but it is not banned in my area. The game warden does discourage it for the reasons you mentioned but the real undocumented reason is they don't want the obligation of paying for running a deer/elk food pantries. They do have a few of them for the elk. There are about 100 elk not far from me that they feed whereas I only have two elk on my property. I create N+2 piles of food to minimize saliva swapping but they do still move each other around at the start of winter. After a couple of weeks they stop swapping and fighting and the ones that have been here before don't even start with the swapping.

The plants you mention do not grow here in the winter outside of a greenhouse. People here that can afford to do so feed them pellets. On the other side of my county all the deer are dying because nobody is feeding them.

Never feed corn to deer, especially during the winter. It will give them diarrhea and dehydrate them. If you see someone feeding them corn try to get them to stop and use nutrient dense pellets and occasionally some oats to assist their digestion.