As far as I am concerned, the Travelbuzz section works pretty well. Any obviously misplaced posts are moved, but the majority stay, even if they could perhaps be placed elsewhere. This is the perfect scenario for me, as I do not wish to have to look through 100 sections to find things that may be relevant or interesting to me
If all the perfectly "on-topic" posts were being moved out of the first page in hours due to the mass of poorly placed posts then I would see a cause for concern. Since that isn't happening I'm not sure anyone needs to get too upset. Things could be a lot worse!