So, I once saw a comedian do a routine about those polls they used to do on dance contest shows. Like, call this 900 number to vote if Ronaldo should move up to the next round.
He said, it's weird that the results would be 48% yes, 49% no, 3% undecided. Because that means that hundreds of thousands of people called a toll phone number and paid $1.95 just to vote "I don't know" in a TV poll.
People want to participate and feel like part of something, even if they don't have a good answer.