'Right now there isn't a way to like a single post. We have plans to implement it though. We don't have a scheduled date/time but hope to have it by the end of the year.'
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 .