One farm near me where a lot of good young deer got killed has been taken out of the equation - it was sold and was covered this year with a bunch of huge chicken houses. I'm not sure of the impact of that yet.
On the positive side it removes a place where good young deer often got shot. On the negative side, it was good cover nearby, and I drew in deer from the farm in the rut. Time will tell. I may not see any difference.