From time to time, this BBs software throws a hissy-fit and will not let me post, because it doesn't recognize my password and claims my name is assigned to someone else. This is twice in 4 years so I guess its tolerable.
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 .