If the 3rd raise with KK is a no-no, then what do you do when you're KK is an over pair to the flop? If you're in position than you're probably looking at a bet from any other over pair (AA, QQ, JJ). Then what do you do? You're then faced with a very difficult decision. An even worse situation is when you're out of position in this situation.

I think that against a reasonable opponent, a 3rd raise is not such a bad idea. If you get raised again you can let it go since the 4th raise is nearly always Aces. Of course if most of your stack will be in the pot after the 3rd raise you can just move in.