Crowdsourcing dating. It's an interesting idea, but I'm not convinced it would work. The prospective date would have to be a friend of all the friends 'voting'- if you have that many friends in common you probably already know each other. Or even if you don't, your social circles are close enough that a bad date could be socially awkward.
People that might actually care about the outcome and aren't just looking for laughs.
If someone says "A would be good with B" and the other person doesn't think B is attractive, they say "No, I don't think A would like B".