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 twit

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.