A nit isn't going to be calling 3 pot sized bets with KKQQ on an A high board . THats why they are nits, they stack off with the nuts .
Well i'm getting outside of the scope of the original post but not all nits Are the same. Some have a super low pfr and only raiseQQ+. When they raise though they will not let the hand go. I also have nits in my db that only raiseAA and will not stack off unless they hit a set.