If I was personally interested, and thinking about the purpose of the app, it's easy to understand that a connection with Facebook may be genuinely beneficial i

If I was personally interested, and thinking about the purpose of the app, it's easy to understand that a connection with Facebook may be genuinely beneficial in this instance. That Facebook is "for people who know you" means it's exactly where Let's Be Amigos can find other local, friendly second degree links. Twitter, LinkedIn, etc, with generally global and/or impersonal links, aren't as good source material for the stated goal.