This new functionality can be enabled at a per-database and per-category level. You can specify separate forums for each category in your article section, for instance, or you can turn off forum commenting for a specific category, while enabling it for all others.
A few additional configuration options, such as allowing you to automatically remove the topic when the record is removed, and specifying a prefix and/or suffix for the topic title so that your users can more easily identify that such topics were stemmed from the articles section help round out the feature, giving you better control over how these automatically posted topics are handled.
These new forum cross-posting capabilities allow the administrator to better tie in articles with the forums, giving you better opportunities to expose your content to a wider audience. Additionally, forum management of comments provides for easier maintenance and stronger managerial options of the comments, utilizing IP.Board's powerful, proven feature set.