This makes very little sense.  It&#x27;s essentially a completely arbitrary subset of all Unicode emoticons.  And of course it&#x27;s always been possible to use Emoji in comments, meaning there would now be two ways to say the same thing (one of which is tracked differently by Facebook, presumably).<p>All they needed to do is create simple short-cut links for auto-submitting one-character Emoji comments, and then say that from now on a comment of &quot;thumbs-up&quot; is a Like.  That way, <i>any</i> comment that contains a key Emoji character could be interpreted similarly by Facebook without requiring a button press.  And, if they decide to track even more Emoji in the future, they could just <i>do it</i> and they&#x27;d already have an archive of comment text to build from instead of having to create a new link again.