If you remove a contact completely, they can send you another friend request.
Blocked contacts cannot do this. They cannot communicate with you directly, only through friends.
-**Ignored contacts** are included in delivery - they will receive your posts.
-However we do not import their posts to you.
+**Ignored contacts** are included in delivery - they will receive your posts and private messages.
+However we do not import their posts or private messages to you.
Like blocking, you will still see this person's comments to posts made by your friends.
A plugin called "blockem" can be installed to collapse/hide all posts from a particular person in your stream if you desire complete blocking of an individual, including his/her conversations with your other friends.