This seems retarded. I'm stacking off with KK vs 75BBs especially after only 20 hands on this flop. I like his flop bet and I'm probably raise/getting it all in on it.
I think folding KK to a guy who leads on a rag-tacular flop and has called 4 hands in 20 is a massive equity leak.
Put in this way, if you fold to every unknown who donks out, even when you have an overpair, you are as exploitable as you can be.