Apparently someone implemented a change to the comments in articles where the upvote, reply, and flag links are hidden until you hover over the comment. Why? No clue. It doesn't make anything better, but it does make things a hell of a lot worse. Why? Because now when you highlight a comment the box expands a little shifting the alignment of other comments.
This is a horrible user experience. When you're idly scrolling down with your mouse in the field of play the boxes jump around disrupting your ability to read things.
Comment box dimensions should not be changing just by moving your mouse around the page!