That javascript slideshow style is really un-user-friendly, especially with largely static content. It's not enhancing anything more than simply assembling the whole thing into a single page with normal scrolling.
Even worse than simply changing the way it normally scrolls, it hijacks some gestures on OSX, so instead of being able to do a two finger sweep to get back to HN, I had to try a few times just to discover it was advancing the slides and not due to user error, then go to the back button.