but I'm guessing that if I make a survey I can offer other people rewards for taking the survey. I don't know. Maybe it only works in the USA
I think that's it.
This is a good example of what Bitcoin can do that other online payments methods can't; imagine a marketing campaign (or a survey) where people receive cash rewards for "participation" directly over the internet, with no sign-ups or over-complicated processes between the user and their reward money. That sounds like a model that's currently untapped, and the friction involved in distributing all the cash has got to be a significant factor. What you want is an over-supply of unemployed young people holing it up with their PC in their parents basement...