Thanks for this Julia. I've been using the links in emails - I have lazy fingers, and wondered if there was a way to not have to sign in from here (email) but recently it hasn't been asking me to anyway!
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 .