Some people will probably come in here soon whining about it being gamey.
It never bothered me when someone used jeeps to recon because all they would find were my tanks which would then knock the jeeps out. Then I would reposition my tanks to a different spot.
The only info you gain is knowing what type of tanks they have, but then why waste points on that? They have to bring their tanks out at some point in the game and then you'll know what they are anyway without losing points on "recon by death" jeeps.