I will agree that it is difficult for many to tell the differneces between buttons and smaller doe, especially when there aren't any other whitetail around to help compare sizes but the group I hunt with has always felt that we should leave the smaller ones for the following year and also feel that if the mature doe is taken the younger ones will have a better chance of surviving the winter.
But poachers out in my neck of the woods like buttons because they are easy to deal with. They shoot them and then leave them until they feel nothing else will come along; the smaller buttons are easier to move. I do not tolerate poachers and deal with them very harshly, especially if there is a dead button on the ground within their shooting distance. I actually had one idiot tell me that the still steaming button on the ground 10 yds from his stand was not shot by his still smoking shotgun with the empty hull on the ground beneath the stand he was in.
I hope nobody here has ever fallen from their tree stand or tripod stand and that whenever possible you wear a safety harness, just in case some property owner doesn't believe your story about being on his land and knocks your tree stand out from beneath you. Your safety harness will prevent falls and the resultant broken legs or a broken back and although you may drop your shotgun or rifle and bust it up badly, and look pretty silly hanging there in your harness until some EnCon Officers come to take you away, at least you don't have to worry about hospital bills and a permantly crippling injury, in addition to your fines for trespassing and poaching, loss of fiream, loss of vehicle and loss of hunting license.