This whole thing is getting worse. People are becoming very impolite since there is no more human interaction on a physical level. They do not see your facial expressions or your feelings. Everything is on a tablet of some sort.
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 .