My Son recieved an invite today. Since he is missing his H.S. season due to an injury, this may be an important event for him. He should be through rehab by May, and hopefully close to 100%.
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 .