Baxter and other users post stories in the "Latest Engineering News" section. These are not authored because they're essentially sending you somewhere else to read content.
Engineering News is different from the unauthored blogs associated with GlobalSpec newsletters. The text entered in these entries is usually taken from the linked article.
These types of content are created as blog entries because we have two choices on CR4 - forum thread or blog entry. It's simply the way the site was designed. Eng News and newsletter blogs (these especially) don't have associated authors because that person is usually not going to review comments. The posts are meant to inform or start a discussion.
I realize that many of the newsletter entries are OT; we've discussed this with the newsletter team but this is outside of CR4's editorial control for now.