Hoyt: In Illinois, archery deer hunters are not required to wear hunter orange, and neither are turkey hunters. However, I always recommend that if they are going to sit in a tree, or at the base of a tree without blaze orange gear on, then take some blaze orange surveyor's tape along, and wrap a piece around the tree.
If you are in a tree stand, wrap one below the stand and one above it. The human eye even at long distances, can see between those lines and realize that a human is there, dressed in his ghillie suit, or camo. If you are sitting at the bottom of a tree, wrap the tape around the tree above your head. Again, anyone approaching will be able to see that 1 inch wide, or less, tape of blaze orange, and realize that they are coming into the range of another hunter.
If they have any decency, they will back away, and give you a wide circle, so as not to spoil your hunt. When you leave, you can cut the tape with a knife, and take it out with you for disposal.
Protect yourself from the idiots out there. Deer and even turkey do not react to such blaze orange tape, because it is not moving. Turkeys can definitely see the orange tape, while there is still some dispute about how much a deer can see. I think they can see, or at least I act accordingly. But see it or not, they don't seem to get nervous, or shy away from a decoy, or from their path going by my stand.
You can buy a roll of the surveyor's tape at a discount home store for less than $5.00, or pay twice that in some of the sportsmen's catalogues. Go figure. Either way, its very cheap life insurance.
I have a friend who just missed being shot by some bird hunters who were working a field where he was set up with his bow and arrow in full camo . He saw a pheasant rise and start to cross in front of him, and saw the guns coming up. He was tied to the tree, so he swung around and put the tree between himself and the shooter just in time for the shot pellets to go whizzing by and through his tree! He has no doubt he would have been hit if he had not moved when he did. He still won't use the surveyor's tape, as he is like you. But, at least he knows what a chance he is taking, and that there really is no good reason for him to be doing so.