When a user contributes content for the first time, they will be not be asked to register. This is to reduce the barrier entry of using the site. However, once the content is uploaded, they will then be asked to register so that they can edit the content and so that it will receive a higher rating automatically. This will encourage users to create accounts and help improve the integrity of the rating system by devaluing anonymous submissions. This is the registration page. Most of the information is not required to further reduce any barriers to registration.