What if towers dealt an increasing % mixed true damage with successive hits instead of more damage?
E.g. turret shots deal the same amount of damage with each shot, but each additional shot against the same target deals a % of its damage as true damage, starting with ~10% and increasing by the same amount until they deal 100% true damage (and then start increasing in damage normally).
People complain that turrets don't deal enough damage to tanks, what about making the tower's way of punishing extended aggro that a gradually increasing portion of their damage is dealt as True Damage instead of just dealing more damage? Squishies experience more-or-less the same amount of damage from towers, but tanks think twice before eating 20 tower hits while their team dives. Sound reasonable?