PubPeer explains how their commenters helped identify some fraud there: http://blog.pubpeer.com/?p=117 http://blog.pubpeer.com/?p=117 So what's the role of Nat

PubPeer explains how their commenters helped identify some fraud there: http://blog.pubpeer.com/?p=117 http://blog.pubpeer.com/?p=117 So what's the role of Nature group here? Print colourful printouts of sloppily-reviewed papers? I feel somehow these "publishers" (basically, they're just glorified PDF repositories) aren't really worth the money they're getting.