A short personal note on my tutorial on Disqus installation: I have used for my screenshots, not this docdock but the hugo-academic theme. I have changed from docdock to hugo-academic and now (2017-05-31) I am back at docdock again. I will explain the reason for this twofold change in one of my next blog post. I am also planning to update text and screenshots to the new blogdown versions.
Disqus is a top-rated service for hosting and managing comments. But it has as an external service several disadvantages which oppose the philosophy of static websites diametrically. I discuss some alternatives for integrating discussion fora with static websites.
This post explains how to integrate Disqus as a discussion forum for your website. It is not a thing you can do directly applying the Hugo documentation because there is a faulty template to change.