hero has $600 SB covers
SB is a recreational player. haven't seen him before. doesn't seem to be good at poker at all. has been loose passive so far in the 1 hour at table so far

hero is mawg and has been showing down strong hands so far

early position raises $7 mp calls btn calls sb calls hero calls $4 in BB with T8

flop is J35 ($35 pot)
SB leads 12. hero calls. MP calls

turn is 5 ($71 pot)
SB checks. hero bets $50. Mp folds. SB tank calls

river is K ($ pot is 171)
SB leads $190

It's fine. Call it off. Win or lose. Not much you can do. Expect to see bigger flushes sometimes. occasionally see smaller weird flush. Doubt we see many boats. As he likely wouldn't lead flop with JJ, 55, or 33.

I fold. This turn call and big river bet show too much strength. Unsure why you bet turn.....

But if SB is an idiot/horrible player, then call. Depends on what you mean by "doesn't seem to be good at poker at all"

For this price closing the action I'm ok with preflop. But we'll have to tread carefully postflop, especially being OOP and being wary of RIO.

I'm fine with flop. In spite of having others behind us still to act and possible RIO difficulties, I don't think we can pass on this price in position against a poor player.

I check back the turn. Our FE against two players is typically low, especially when one of those players is a poor player who just donked into the world on the flop (we really think we're getting him to fold here?).

I fold the river. A loose passive recreational player just bombed the river and put huge stacks at risk. We're basically hoping he plays a baby flush this way (of which they're aren't a lot of reasonable ones), and most simply don't.

GcluelessNLnoobG