(Rarely look in this thread, this name popped into my head just now so I thought I would have a look here and saw that a Y name was next - I'm not making this up)
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 .
