The image won't show for some posts. Not everyone has figured out that they just need to hit "reply" on the post to make the image visible.
Another way you can look at it. Picture when a semi goes over a speed bump through a tunnel. When it goes over that speed bump the top of the semi will hit the roof of the tunnel. If you think about it, it's the same concept. Bumps affect the bottom and top. Blankelsy effect or However you spell it