When did AS start accepting ads as part of the community discussions? We don't get enough of them we now have to navigate around them in our quest for answers? Geesh!
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 .