I think everyone leaving the woods for lunch might stir up the deer and get them moving cause they are trying to void people leaving the woods and or coming back in.. I also have noticed some active around that time of day.. Probably what it is if you hunt places others do..
Here you would have a lot of diffuclty finding others in the big woods if you choose to hunt by yourself. So, with that said I think deer like to move a little bit for a mid day snack and stay out of the open fields for it when hunting season starts. I know here it is not because other hunters are getting them to move.