The news section is there partially for the benefit of the portal and the latest news thing that appears in the top right of the new skin, so someone can go to one place to get the news, rather than having to look through threads.
The thing that perhaps needs to be done is to have no replying directly into the news forum and have the discussion go on in the relevant forum. I've seen other sites where there is a centralised news section that then points out to subforums for discussion, either by the article being cross posted and linked to, or by linking to pre-existing discussions on the subject.