From my POV, I just don't like making assumptions based on one a few hours of playing. If we had more time with this villain other than what we've seen in a single session, then sure. Use that solid read. But after only a few hours and I'm assuming only a few showdowns, I'm not going to put that much faith into a read on a player.
Unfortunately, unless one plays exclusively in private games, it seems like this approach would mean never applying reads vs recreational players in casinos.
While I will often stay 6-10 hours at the same casino table, it’s not common for unfamiliar recs to last more than 2-3 hours without leaving or switching tables.
So there is little chance to get a truly solid read on these players just from volume observation of their play.
*But!*
You can extrapolate (carefully) from limited info, especially with certain player types.
A thinking player (whether good or bad) can be hard to nail down in 3-5 orbits.
But some whales/fish show their colors/stripes very quickly.
If someone overlimps from earlu position ten handed with trash like 83o, and somehow gets to showdown with fourth pair, you’ve learned a lot from a single hand—because almost no one but a really bad player is doing that. Or else a very skilled pro, who is sure they can outplay the table postflop… who wouldn’t be found in a 1/3 game.
Certain behaviors fall pretty squarely onto certain player types. I might not have seen enough to be 100% sure they fit a type; but once I see enough behaviors that indicate that type, I’d rather use that as my lens onto their play than just assume they are a generic tight-passive rec. If something happens that changes the picture, revise the assumption.
I play much more in private home games or social hall/firehouse games than in casinos, and in those venues I tend to know 95% of the players. So we all have reads on each other (and the better players try to play metagames using their image in the group, mixing it up).
I think those reads and player profiles come in handy when dealing with unknown recs in casinos. I can watch the action and after a few orbits say, “OK, this guy plays like my friend Brian, but maybe a little tighter” or “This one’s like Mary, but slightly more reckless.”
Not at all perfect… But better than flying blind. As long as I stay aware that the profile is not exact, it is usually helpful.
On top of that, I avoid playing stakes in unfamiliar territory where losing a couple buyins is going to tilt me. I play at a level where if my read is wrong, and I get stacked, it’s fine. Reload and try to work back to even.
In this case, it seemed like Hero had observed enough to put this Villain in a familiar box. I felt good about the way the hand was played (I would have played it more aggressively even) precisely because this specific type is a lot easier to spot and exploit than others.