Facebook habitually recommends some names totally out of the blue as "You may know". My stock response is to view that profile, and if it sets my spidey sense tingling - block. Recently I moved to block a couple of such recommendation under the "You may know".
A few of these could not be blocked. After the confirmation dialog - there was no further action to redirect to the Blocking page. The Blocking page too does not mention these profiles.
These so-called unblockables appear to differ from the blockables in two ways
- URL carries id as a numeric value instead of alphanumeric string - URL ends with a "&fref=pymk" *this may be an acronym for "People you may know"*
EDIT Following up on the posted answer below - these particular profiles appear apparently unblockable even using the Settings->Block Users. An error message dialog comes up with the string "Something's gone wrong. We're working to get it fixed as soon as we can." UNEDIT
- Why am I unable to block all random profiles recommended by Facebook?
- Are some profiles on Facebook un-blockable?