I feel like this zone should be a "no pass zone" for pitches. you can take pitches around that or certainly out of the zone but take a hard hack at anything that is close to that blue zone.
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 .