In fact the original is far superior to the Ars "summary" because it provides a more neural headline, also provides link to the paper up front, provides the abstract, provides the key graph with error bars and information about comparison to other disciplines. It ends with a reasonable evaluation that this hasn't proven anything either way and calls for more investigation.

Furthermore it was also written December 23rd by a site specialising on these matters rather than by Ars, a pretty low brow generalist site, on December 27th. While the Ars author has a PhD in biology, the guy who got the scoop four days earlier is eminently qualified in this area.[1]

The original link is a better article, published earlier, by a more appropriate author on what appears to be (although that isn't hard) a better site. The HN mods shouldn't be changing the links except in extreme cases anyway.

[1]"Aaron E. Carroll, MD, MS is a Professor of Pediatrics and Assistant Dean for Research Mentoring at Indiana University School of Medicine. He is also the director of the Center for Health Policy and Professionalism Research. He earned a BA in chemistry from Amherst College, an MD from the University of Pennsylvania School of Medicine, and an MS in health services from the University of Washington, where he was also a Robert Wood Johnson Clinical Scholar.

Aaron’s research focuses on the study of information technology to improve pediatric care and areas of health policy including physician malpractice, the pharmaceutical industry/physician relationship, and health care financing reform."