Those results are exactly what I expected. Because for the most part, you see something like that going on and you think "Well, there's some sort of catch there, and I don't want the hassle". Until he hit Dundas Square, and a sort of crowd based critical mass was reached where you could actually see that there was, indeed, no catch.
I thought based on this quote that they were going to follow the people to see what they spent the $10 on, see if they gave it to a homeless person or something. There was nothing covert about that filming at all.