"No comments‽" was a common theme in the response to monday's post a better blog. I did not intend to imply that I don't value the opinions and thoughts of my audience. Rather that comments are a poor medium for discussion.
Firstly, commenting generally has a low barrier to entry. It is easy to belt out a hurried, flippant, or poorly considered response. By moving the comments off the site the barrier to entry is higher; The responder is more likely to invest time in the reply.
Related to this, the reply has a stronger attachment to the author's identity, and "...they're forced to defend their ideas on their own turf...It forces a level of consideration that, without fail, results in a higher quality exchange of ideas."
Thirdly, comments are a ghetto filled with second class citizens. Your opinion is less valued than that of the post's author. This is why I added the miscellany to my site. Every user has as much power there as I do, including the ability to edit their own and others words.