Long ago, manga aspired to be like Dragon Ball Z: graphically iconic, with a story more coherent than it probably needed to be. Now there's the ADHD-addled Dragon-Ball-Z-inspired One Piece, a manga for the Twitter age if there ever was one.
Pop culture was best when you, the reader of this sentence, were 12: http://i46.tinypic.com/1625ims.gifI remember watching DBZ after school, and while it is certainly "graphically iconic", there is no legitimate way to claim it has a coherent plot. It seems like the author is remembering his Saturday morning cartoons through some rose-tinted cokebottles.
I won't even touch "Anime is terrible. It used to be okay."