Privacy implications aside, I think even if they don't create profiles without the person's consent it will still take off -- if you approach someone and tell t

Privacy implications aside, I think even if they don't create profiles without the person's consent it will still take off -- if you approach someone and tell them that someone left them a positive "review" and would they like to create a profile and share it, I would expect 80% of people will agree to that. Flattery will get you everywhere.