I know what the rules are. It took quite a while but we finally forced the power companies to mark their met towers. They were intentionally building them 2 feet short so they wouldn’t have to mark them. Serval pilots died because of their murderous attitude. As a pilot, I can tell you for a fact if the tower sticks up 2 feet above the tress, it is dangerous. There is a collection of 5(?) north of the runway at Hannibal, MO that I have to fly around because they are a little taller than the trees. They are hard to spot and I nearly hit them the first time I flew out of there. The most damage I ever done to an airplane was when I flew through a dead limb sticking out above the leaves. I knocked the leading edge of the wing back to the spar and I never saw it. Dead limbs are easier to spot than a tower.