I don’t see any comments. Even when I disable Ghostery nothing pops up so I will have to rely upon others to view them. That and Adblock Plus do an amazing job of stopping pretty much all adware on sites. :)
Hiding comments is a bug, not a feature.
I took another look at the article. There are now 113 comments and 991 people watching.
It uses Livefyre Comments, which is apparently a Disqus competitor. It dynamically updates when new comments are added. (IOW, it needs JavaScript).
The big trend these past few years is for content sites to farm out comment handling to one of a small number of providers instead of rolling one's own comment system. Disqus seems to have most of that market. It's much more common to see commentable articles than it used to be.