Wouldn't they just pay some Chinese sweat shop a dollar a throw or something? If they're saving money on registration fees, I don't see how making it a little awkward will deter them.
+ You can let the user make their own questionnaire ...so they can make their questions be as relevant as they want. i.e. lets say you own something like newyorkjetsftw.com, you'd ask some questions that only a true Jets fan would know or someone who'd want to spend the 10 minutes hunting down the information