User blog comment:Kirkburn/Technical Update: April 1, 2014/@comment-20637203-20140407025809/@comment-126761-20140407163427

The module is entirely removed, including the button - it's not that we don't want people to discuss articles of course, but it wasn't actually getting used to start them. It was also frequently empty since many articles just didn't have or need discussions, which isn't a great look. I'll pass on the feedback about simply having the button, though.