In order for us to take a look into issues with specific snipes, please file a support case from under the Help tab of the site, using the Contact Support option. Please include the item number of the snipes in question and we will be happy to take a look into it for you.
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 .