Point taken (and wink accepted). At the risk of wandering a bit off topic, I have two comments:Maybe it gives the DM that sense - because should anyone else /really/ be seeing those stat blocks?
1) If everyone rolls their dice out in the open (as we do), its pretty easy for players to work out ACs, attack bonuses, hit points, ability modifiers, etc.
2) As a DM I am happy to have the players be familiar with the stats of commonly encountered schlubs. When presented with a patrol of 20 soldiers, they will have a good idea of whether they should take them on or not.
This allows me to present a more naturally diverse set of encounters with variable difficulty. The players can decide for themselves whether they should run, be sneaky, negotiate, or just charge in. Of course occasionally, things ain't what they seem . . .