About.me for dating + reward = profit. In all seriousness, I could see this becoming a model that, if done right, could be quite profitable for people looking for something to start.
That's a sweet idea, but there's a tipping point where the value of being the Nth+1 person on the service doesn't increase your chances of being noticed.
Now, make it a consulting service where people pay you $1000 $5,000 for website / online-marketing / PR services to help land a date? Add in scarcity? That's a cool idea.