I don’t use it but it’s because I’m to cheap not because I care if it helps or doesn’t or because I care what anyone thinks. I’ve hunted to many places that it was legal and seen the results and lack there of to buy into the crap.
Corn ain’t no different than clover, they’ll eat it when they want to and they don’t come running just because you open a bag.

I’ve hunted in places where the put the hunters out and run a spreader down the road throwing corn for a hundred yards both ways on each stand even if nobody is on each stand sometimes deer come sometimes deer don’t. I’ve hunted feed troughs full of corn and other magical mixtures, sometimes deer come and sometimes deer don’t.

I just don’t understand all the great white hunter BS about it. Plant a field, cut a trail, pile brush to make a funnel, pour corn on the ground or plant an apple or persimmon tree or even build a fence it’s all the same intentions.