The NCAA will have a list of things you need when you login. There is a checklist or it will say you are NCAA eligible. Just ask your registrar and they will send it off.
When you block a person, they can no longer invite you to a private message or post to your profile wall. Replies and comments they make will be collapsed/hidden by default. Finally, you'll never receive email notifications about content they create or likes they designate for your content.
Note: if you proceed, you will no longer be following .