In Europe you it's opt-in by default. You have to explicitly consent to the creation of an account as far as I understand it. So, to me, they could scrap content but not go as far as create automatically an account without your consent. Or I misunderstood something and would be glad someone explains it to me.
I don't think they create an account for you, they just compute a score based on your activity on social media accounts you already have.
So if you have a twitter account, they can generate a score for the twitter user using publicly available information and then if you sign up to klout, link these existing calculations to the newly created account.
