Villain is 17/0 over 23 hands. I open A7K2ss and pot the flop K73r to thin out the people in the hand, MP comes along. He can have a K here.
Tc comes on the board and I pot again and he calls. I think K+FD would raise there. He could have KT, I am not sure about K3 and K7, as it would need to be something like AKB3ss.
On the 6s river, could he have a missed straight that he turns into a bluff? I cannot see many 89 in his hand other than AK89ss.
don't bet pot on this flop. 1/2 pot is good enough.
turn I would still bet, your sizing there is fine IMO, but flop should definitely be smaller. river I don't really know what to do. what makes sense for him to have is some kind of K89x, he should almost always have some kind of Kx since your flop bet was so big, maybe 456x. he's repping a small range, but it's a guy playing 17/0 at PLO5 so I don't really know... Kc isn't a good king to have here since it's less likely he has busted clubs.
all in all, I'd say fold against this guy. against more aggro players this should probably be a call assuming they turn busted draws like JQ or clubs into bluffs.
This is the bottom of your value range by the river, and with no blockers its a fine fold.
I would go smaller than 1/2 pot OTF, because people are drawing thin anyways. You're only really scared of 654x hands, everything else is drawing thin.
Jeez some of the advice in this thread is terrible....never fold a suited ace OTB in an unopened pot. Although limping or making it 0.20 is probably better.
As for flop sizing.... potting is slightly too big but I'd rather do that than half pot. 75% is much better sizing though here - it's a pretty dry board but we're multi-way and want to dissuade any back door draws from coming along too cheaply.