Hey Matthew, sign-ins are required for the survey to be taken; if we didn't prompt for sign-in, we wouldn't know which profile to associate the answers with. Users will have the ability to sign-in via Facebook authorization though, which will add them to your database as they answer the questions. In the interest of capturing all of the FB data you can, when you connected your FB page to the broadcaster it will have pulled in previous posts and the people who liked the posts in addition to allowing you to tag the people who liked those posts.