I guess I should've put more info on the main villain in the OP...

After re-reading the action and getting your updated views on the villain, sounds like a call. I assumed standard player post flop meant he was OK, not fishy, and that the turn call range would include inter alia non-nut straights with or w/o redraws. I assumed wrong.

I would still fold preflop. It is understandable you want to be in lots of pots in a good game--but even if you are way better post flop than all the active players I am pretty sure that playing a raised multiway pot with this is -EV (or approaching neutral at best) and if routine will certainly send the variance through the roof.

Yea I wasn't very specific/clear about his tendencies, but I meant he was slightly more standard post than the other mega fish.

And yea you're probably right about the preflop stuff, especially when I'm oop against this guy.

Results?

Hero should be potting river given action until then. As played, I think a lot of the decision comes down to bank/life roll situation even though many would not like to admit it (its pretty close).

with your reads, he essentially doesnt have a value range, which makes it seem like a trivial call.

however, just going from your OP, i think that it matters what btns stack is, and how the game plays in general, but generally in live plo when three players get to the river people who dont have the betting lead dont tend to spring into life with potsize bluffs, esp when a draw misses that a curious oppt can give them credit for. additionally, given that three people got to the river, it has to be decently likely that someone has the (flopped) nut fd. if that someone is btn, then obv in his mind it reduces the chances that the other two were drawing, and therefore more easily bluffable. if that someone isnt btn, then he has a made hand himself and is way more likely to show it down than to bet (the "typical" value range in this spot def doesnt go as loose as KJxx, in fact more often than not id expect it to consist solely of 74 and 42).

Why should we pot river here?

No reason villain can't have the low straight and be afraid to shove the turn, but still be potting the river. Still probably have to call the river against a tilted fish though when all the draws miss. If you're playing this hand pre though, you need to at least know that it's really bad when you do it. It's one thing if you're like I was sooooo bored because I hadn't played a hand in 40 minutes, and I made this awful raise pre, what do I do now. If you think it's remotely possible to turn a profit with it though, you're way off.

i disagree with it being clear cut. with a fish otb it is almost certainly bad. but there are circumstances in which it may be slightly ev+.

As a bluff attacking a pot that went to the river 3 ways where only 1 will call (you'll never get called by both) and even the top of their range (bottom straight) may fold.

Idk, turning this hand into a bluff otr seems bad. I wouldn't wanna do it just to "attack a pot...where only 1 will call." If this is a bluff, it doesn't matter whether 1 person calls or 2 people call, we are trying to get 2 folds. If you are saying that you want only 1 person to call then it is a value bet.

Also, even if we thought villain could have either straight here a decent % of the time, he definitely isn't folding bottom straight on this river.

What I meant is that if you pot you will only ever really get called by 1 player (BB is never calling a pot + call in front after checking unless he somehow has 74) so by betting you are essentially making the hand heads up but with the perceived strength of a 3rd barrel into 2 other people. You are potting as a bluff, never expecting to get called by worse and of course hoping you don't get called at all.

checking has a much higher expectation, DUCY

A higher expectation that I give myself a charley horse in both legs for letting K5 get to showdown free and win? Yep.

Look, I hope people aren't taking my advice, because people who pot in hero's spot are the type I most don't want to see on my table. Give me the guy who check/tanks here all day, added bonus I get to take a bathroom break without missing a hand.

Fwiw I didn't tank on the river, the guy in the BB did. Plus at the time I thought it was a pretty easy call.