I am reserved against most of the assertions this article makes. If I were in the IT team running building the UI, right now the only thing I would add, would be a tag cloud page to choose from grouped posts.
Perhaps, I would also add a field while submitting a Story, where the user would optionally group the story to a specific predefined category. The set of predefined categories should consist of already established tags, or topics the IT Dpt. feels like steering, or incetivizing the community to elaborate.