We sometimes set our wall tent up ahead of time. Our reason for doing so is not to "claim" any spot at all, it is so that we are not setting camp up after dinner time in the dark. We don't want to be whacking stakes into the ground 7 hours before we walk out to hunt. I would imagine that would prompt a thread titled, "It chaps my rear when people set up camp the night before opening day"...
I would prefer if others came across our camp, with the hopes to have camped there, to go ahead and do so. I think it is less disruptive for camps to be in the same spot rather than scattered about.