Let's see if we can get a blog-fight going :-)
I think attribution is a bigger issue with mainstream media outlets on the web. The New York Post (and even Reuters) has a habit of not linking out to the sources they cite. I don't think a Code of Conduct is going to change that though. Our problem at Reuters is one of technical issues, which we're working to fix (issues with ingesting wire articles to the web; while our opinion section is very good at linking out)
I think there's a culture of understanding the link economy here, as demonstrated by how we link promiscuously on the side of the CMS that actually allows us to do so. The coming revamp of the entire CMS will make linking out ubiquitous throughout the site and it can't come soon enough.
Getting back to the main topic though, I would agree with Hamilton Nolan's Gawker post, which stated that public shaming is more effective than an imperial council of blog cops.
Thanks for your feedback! Team Branch