I don’t agree with that. I would say I voted for Romney. If everyone lies and says they voted for Obama you know the msm will be touting that all day and it could effect the Republican turn out later in the day.
You are right. Plus, if exit-polling favors Obama, then when the Democrats lose, they will try to use the courts or the streets for a re-count.
Proper way to do it:
Exit pollster: Who did you vote for?
Voter: ROMNEY!
Exit pollster: What is your party registration?
Voter: ROMNEY!
Exit pollster: How old are you?
Voter: ROMNEY!
Exit pollster: Who did you vote for for Senate?
Voter: ROMNEY!
Etc., etc.