If you think it's uninteresting, you have the choice to not view it. While you might feel it's unrelated, it is not. This is a forum for everything automotive. AF's GT-R is very relevant to AF. Global posts are for AF related activity. If you expect everything to be about the TrailBlazer, you might have a misunderstanding as to what AF as a whole is about.
That would be like saying I can't post here because I'm assigned to the Honda section therefore I must be contained to just that section. I am an automotive enthusiast. I am all over AF