While the deer won't eat the corn pile all day long, it may draw them off their regular route for a while because now they have a new destination in mind as they go browsing through the woods.
Agreed. A few years ago we had a non-hunting neighbor (with 160 adjoining acres) feeding corn year round. He only visited his property on weekends, but had a local guy keep his corn crib (no kidding) full 24/7. This neighbor also prohibits hunting on his land.
Anyway, for the time he baited/fed like this, it really changed the patterns of the deer in our section. Rutted trails led to his crib. Following these trails it was easy to spot how and where the deer were overbrowsing the natural food sources along the way. As a result, our deer sightings during season went way down, even though we knew there were alot of deer in the area.
When he stopped feeding, the deer returned to expanding their range again and spread out across the section. Hunting improved. Overbrowsing ceased to be an issue.