Facebook has made some backend changes that allow users to 'like' comments from stories in their news feed. This has been a much requested feature from Facebook users and, unfortunately, Facebook has only half-delivered.
As you can see from the screenshots above, comments are only "likeable" when viewing from the news feed. If you access comments from anywhere else, say notifications or a friend's profile page, you cannot 'like' them.
Who's excited about this feature and can't wait for it to be app wide?