In reply to Brian.

There's an option to allow guests to comment on Disqus so users don't have to register an account if they don't want to. You can also change the default comment sorting on your blog. By default it's set to "Best", but you can change it to "Oldest" for a more traditional flow.
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PS. I love Post Status! It and WP Tavern are my "go to" WordPress news blogs.