These are its function:
NOO DISQUS Comment allows you to add comment in articles of your Joomla site quickly and easily.
Features of NOO DISQUS Comment
1, Support Joomla 3.x
2, Set up Subdomain or Shortname registered on DISQUS.
3, Allow setting language for DISQUS Comment.
4, Integrate DISQUS Comment with Joomla Content & K2 Item.
5, Allow selecting Categories to integrate DISQUS Comment to Content/Item.
6, Allow selecting items in categories or subcategories to integrate DISQUS Comment.
7, Allow displaying number of DISQUS Comment of Content/Item in View Category.
8, Allow displaying number of DISQUS Comment of Content/Item tin View Article.
So feel free to download and try it out.