I made the custom profile, it's attached to this post. You can copy it to your profiles folder in the app. You may need to save a dummy profile first if your app doesn't have a profiles folder yet.
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 .