The problem with the 'hell-for-leather' writing movement

As of late, it's fashionable to write hell for leather. In fact, there's a hot cottage industry in the writing culture. But is it good for the writing community? Or detrimental? For lack of better terms, let's call this trend the "The Hell-For-Leather Writing Movement." Or HFLWM. You see HFLWM in titles like "How to Write Fast," "Write an Article in 20 Minutes," and "How Fast Can You Write?...