RE: Overhunting stands
This comes up all the time.
IMO...if the deer don't know you are there. NO you aren't over hunting the stand. If they don't know you are there. They don't know you are there.
This is where a good pair of boots and good scent control comes into play along with hunting a good wind.
If you are busted on one or more occasions then, yeah. You probably need to leave the stand a lone for a while. Or move it to another tree.