Okay let me try to explain this again. See with your example with the forum posts, that would be the content of the forum. Now with this mod the only thing that would come preload is the settings and maybe the geneic game info, the content of the mod would be all the comments, reviews, screenshot, etc which would be different with each site beucase the admins would have to do this them selves. Take the following examples, with IGN the game info is on the left, gamespot is at the top and left side.
http://pc.ign.com/articles/794/794508p1.html
http://www.gamespot.com/pc/action/halo2/index.html
See how the release date, developer, publisher are the same? Doesn't matter what site you go on if they provide game info it will be the same. So why have people enter the same info over and over again?