Maybe where you are at but a lot of folks don't hunt around farms. So putting any food in any location is the same here. If it grows or gets dumped out of a bag makes no difference to a lot of us.

Natural food source around me is mainly acorns. You got to remember it does not look the same off the front porch for everyone on this site. The only soy beans and alfalfa near me are at the grocery store. There is some corn but most of it is gone pre-season.

As far as spreading disease...does it seem to be a huge problem in the states that make it legal to bait? Are there any numbers comparing cases in baiting and non-baiting states?

I honestly don't know the answer to the numbers question but quoting some internet comment really doesn't answer the question. Heck we can prove and dis-prove global warming for a month if we are just going to use random quotes from the net. All the quote said was increase the probability...I mean so if it goes from .00001% to .00002% of a chance, there is an increase in probability but...not really. Hard facts are one thing but I didn't see any in the information you posted.