It's ran by some 13 year old, as you've put it. I mean look at the wall posts for starters, they're terribly written, in comparison to the offical Bethesda pages.
Is Skyrim's fan site on Facebook run by a child, or is it not even in the hands of Bethesda?
Probably both.
You do realize that anyone can create a fansite on Facebook? There are probably hundreds of fanpages about Skyrim, they're just not as popular as this one. I don't understand how anyone could mistake it for an official site, it's painfully obvious that it's run by a fan.