I'd really appreciate if you can answer this questions. Why did you go for pot control on flop? Was it stats dependent? What did you put him on after his donk bet? Was it stats dependent? What did you put him on on the turn after his bet? Was it stats dependent? Did you consider shoving (why not)? Was it stats dependent? When did you start to be worried about his WTS?
Ok, I'll answer with pleasure.
1. AK on 26Kr flop is the situatiuon where no draws are possible, so I don't need to raise his bet since worst hands like KT, KJ, KQ, A6s would fold(his WTS only 11% so he would always fold them to a raise or would check-fold on the turn with KQ). Either I want him continue bluffing if he is, because bluffs fold to a raise. If I am behind(K6, 66, 22) then I play for small pot without all-in(actually in this hand it was all-in but it was my spewy play, on the river I should have folded).
2. It wasn't really stat dependant, this is standart play vs almost every opponent. I would maybe raise a maniac with very high WTS which doesn't fold any pair to get all-in by the river, but raising this flop is in the most cases very bad.
3. I put him on 22, 66, KQ, KJ, KT(seldom), K6s, K2s, 62s(seldom) because of the high VPIP or a bluff(very rare).
4. Yes it was stat dependant, his AFq on the flop and WTS was low so I don't put him on any 6 or any 2 or low king.
5. I put him on 22, 66, K2, K6, A6(very rare). Yes it was stat dependant, I explained it in N4 answer. I didn't concider shoving because if I was ahead I didn't want to scare any worst hands(he could probably fold even K2, K6 here) and if I was behind I was going for pot control(there is a big article about WA/WB and Pot controlling but I can't explain everything here it's too big.).
6. I started worrying about his WTS as soon as he donked the flop.