Raising pf from the BB is bad if we can close the action by checking.

I hit a straight flush recently and played it basically the same, except my V potted the river with his high full house (he hit it on the river, too)

Please play at my game so i can bluff u with min raise all day

You didn't give us reads on what type of "fish" he is, but why is that combo extremely unlikely?

A good player with 6s7s in his hand:
- Has few starting hands with 6s7s
- Hands that do have 6s7s are much more likely to have the other two cards coordinated and have smashed this flop enough to raise
- Will build the pot at the turn when checked to knowing that his only hope of action is boat draws

But this is not a good player. A loose rec player who just plays too many hands and calls along til he thinks he has the best of it can have a much wider range of wildy uncoordinated hands that have 67ss in it and nothing else and WOOHOO he turned straightflush and he checks it back because LDO he doesn't want to lose his customers.

All that said, a river bet is mandatory. But I hate the sizing. Action so far seems unlikely anyone has a flush, so what are we trying to do with this dinky sizing? Get called by a straight on a 3-flush paired board??

Our payoff hands are lower boats, and a loose villain can have more (various 96xx, 95xx, maybe cautious/slowplayed flop sets, turned 55xx sets) than a good player. Which won't fold. So bet like a man. And then call a raise.

As played, still call a raise. You are getting ridiculous odds and folding to a chop or an overplayed hand is a disaster. Even if we give him credit for 98+, he may think 98 is the stone nuts or he may have 98 with a 6s or 7s and *know* it's the stone nuts.