Quote Originally Posted by Fnord
Quite often we end up in a hand with someone and don't have much to go on. ANYTHING is better than nothing.
"a little knowledge is a dangerous thing" - someguy.

I think changing your basic play by much based on something like this can have a reverse implied odds effect.

e.g. say you sit down and a big stack raises the first 3 hands at the table without showing down. Seems like we can peg him as reasonably loose but obviously we want to solidify that read before we act on it too much.
4th hand he raises again and we look down at AJo. Do we really want to get involved here against someone we dont know when we are probably way ahead of his range but probably wont win nearly as much (or as often) when we are as we lose when hes actually a tighty on a hot streak. If we think hes LAG but arent sure then how do we deal with his 2nd barrel on the turn once we've hit our A or J? Id rather stay weak tight and pass up marginal edges like this one until i have at least 10 hands on him (or he shows down something insane) and can be more confident playing my good-ish hands for big pots against him.