Krak, Sorry, nothing to add, my experience with Menlo is limited to playing them in tennis back when they were a JC in the early 80's. Their #1 and I had some pretty good matches.
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 .