I wanted to dissect a hand that Austin was in at TuNP this week.
Flop was 8TT two hearts. Yuri checks (two hearts), Austin (88) checks, I (AT) make a middling sized position-steal kind of bet with the expectation that if someone had the case Ten and a side card other than the eight that they would check raise me and I'd be ready to go to the mat with my hand. Instead Yuri calls and Austin calls. OK, that makes sense to some degree since there is a straight and a flush draw out there.
Turn card is the third Heart. Now Yuri springs to life and bets. Doesn't take a genius to put her on a Flush. Then Austin smooth calls again with a glum "oh, okay" kind of look. Big ping on my radar. Flat calling a paired board on the flop and an apparent flush board? Obviously a straight draw is out. Flat calling the nut flush? Maybe but the nut flush is not the nuts on a paired board. And the begrudging call act is telling me I'm way behind. However, I know I can catch up. I need to improve to win this hand but I also know that implied odds are huge. Yuri's bet is callable so I move my chips into the middle.
I need the river to be an Ace, the case Ten, or to pair the Turn card. I hadn't pieced everything together at the time but I think I would have eventually figured out that the 8 pairing was not good for me either, not that I wouldn't have paid it off but at least I would have made a crying call.
River is a blank and Yuri bets again. Austin, sandwiched between both of us has decided it is better to try to real Yuri instead of trying to collect my chips too with a flat call. That was the right decision because I was done with the hand immediately after I didn't get a friendly river.
Yuri goes into the tank. I can see Jeh's gears cranking in his head trying to figure out the hands. Austin's push has cemented my gut feeling and I even silently mouth "snowmen" to Jeh since it is the hand that fits the action exactly. T8 is also possible though less likely since it is a less desirable starting hand than 88 and it would involve the case Ten which further decreases the chances that that was his hand. Yuri eventually thinks her flush is good and Austin scoops the pot. Austin got lucky that Yuri doesn't have the same appreciation of a paired board that we do.
Now contrast that with this chain of events. Yuri checks, Austin makes about a pot sized bet (which is small since it there was not a lot of pre-flop action) that I interpret as either a steal attempt, an eight, or a small pocket pair for a flopped two pair. I have to raise here in hopes he has a smaller Ten so I three bet him. Yuri would not be able to resist a trying to land that flush and take down a pot bloated up by the action. At that point Austin can smooth call and the pot is now about three times as large as it was than when he checked the flop. Now when the heart comes, Yuri's bet has to be much larger to be significant and is more likely to pot commit her later. Austin can smooth call that one and I need to decide if I want to chase my boat. I likely fold with an apparent flush and Austin flat calling a large bet. Blank comes on the river and Yuri has to bet an even larger amount, maybe even a push, and Austin pushes like he did before or insta-calls a shove. If Austin pushes, Yuri has so much more in the pot already that her decision is made much easier to throw the rest away.
Another reason to get more money in on the flop is this. What if Yuri doesn't catch her flush? You don't get her money. Or if she catches her flush and you get her turn bet then a scare card like a double paired board or a fourth heart (assuming Yuri doesn't have the Ah) on the river and she's not calling anything more.
Or how about this? Austin leads, I raise, Yuri calls, Austin now knows I have a Ten and and bumps again. In this case with AT, I'm willing to go broke with this hand and Austin could have emptied my stack plus a call of a three bet from Yuri. Oh, and my stack was larger than Yuri's at the time by the way I'm pretty sure.
Then there is always the embarrassing situation of giving a free card then getting a check behind from pocket Nines only to have a Nine fall on the turn. Austin gets all the action he can handle because he figures someone caught their gutshot straight when in fact he has a one outer to win the pot. Ouch.
My point is, there's a ton of reasons to bet your hand, even something as strong as a flopped boat because by building the pot you get more money in and make it easier to get all the money in before the board kills all of your business. Easier said than done? Someone please tell me the last time you saw me NOT put money in on the flop when I spike a boat. Sometimes I show and people wonder why I bet it. Because if there are no draws out there to feed the pot you aren't going to get any money from it anyway. True someone could back into a runner runner flush or something but someone could also back into a better hand than yours too.