There is a placeholder for the Guide article author; however, at times, we have articles that could be updated by multiple people. It would be nice if there were a placeholder for the updater name, who may not always be the Author for the article. With the present design, the current updater would have to change the author name each time an update is made.
In edit mode of the article, the person who last made the update is shown above the article content, and of course, the revision history has this info. It would just be nice to be able to display this same name on the article itself in the Help Center.