It's probably both a good thing and a bad thing. On one hand they have a strong, predictable feeding source into the winter which is good for herd health and patterning deer for the late season. And I honestly don't know how it would effect the rut. I think the weather will have of an effect than the standing corn does. Corn is routinely left standing on many of the properties around the area I hunt and I have never had too much of a problem seeing deer when I've been able to get out. But that is just my experience, I'm curious to know what others think about this as well.