You may have noticed that the comments section of this new platform is using an external service called Disqus. Disqus is a clean service that wraps all about commenting for a website and does it very well.
Have a look at the comment section below. You can login into Disqus via various online profile managers (Facebook, Twitter and Google ; and of course Disqus) and off you go.
Your comments are centralized, you can get notified if somebody else answers an article you commented or answers to you in the comments.
I hope the content of this new site will trigger you enough to express yourselves as well!