we could push preflop, which would tell us immediately where we stood. he either calls with a strong hand or folds a weak one.

we could open shove the flop, and he would call with most hands that beat us and fold out most that we beat

we could bet half our stack on the turn, and ...

thing is, there are lots of lines we could take that would tell us immediately where we are at, and would narrow villains range accordingly. Alot of these ways however, are -EV against the range of hands that villain could have or in some way weaken the amount of ev we could expect to gain.

also as iopq said, often times our "see where you're at" lines dont reveal the kinds of information we think they do.