In my area? No, we've never had a problem with disease being spread, and I feel it brings no greater advantage than buying the doe-in-heat stuff, buying stuff to cover up your scent, using binoculars, using fancy bows and arrows, using scopes on guns, hunting a field that's planted, using range-finders to figure out the yardage you are from a deer, buying special camo, rattling and the list goes onnnn and onnnnnnnn and onnnnnnnnnnnn...

All of these give you about as much of an advantage to killing deer than just putting out corn, esspecially since a lot of people use a ton of them at the same time...

Is it cheating? Uh, no, not when you don't have much land to hunt and you know there are deer in the area, if you're gunna kill 'em, you have to bring 'em on your property, right?... hunters were doing this ages ago (they didn't have batteries and feeders, of course, and were most-likely not using corn), it's how they gained their advantage on the species they hunted, they made sure they brought 'em in to an area they could kill 'em, their lives depending on them killing that animal...

Unless you make your cammo out of natures best (leaves, limbs etc...), have a bow that could be mistaken for one dating back to the iron-age, arrows made out of stick and stone, don't use binoculars, don't buy doe-in-heat stuff, don't buy scent stuff etc... you are in no position to look down on those who feed with corn...

PS. I'd much rather stalk, myself...