I am as confused by it as you are Ales.
My best guess is another mod read it, and bumbed the "hide post" button. Its easy to do, and you have to refreash the page to see that you've done it. (but it does open another window to tell you its being done).
Either that or the kid asked a mod to remove the post so he could make another post in the kit car forum.
Either way Iv put it back untill someone who knows otherwise gives a good reason for hiding it.