Working with comments
Drupal 8 introduced comments as a fieldable entity that can now be referenced by any other entity using the new comment field. So what exactly does that mean? This means you no longer manage comments as a configuration option from a content type. The benefit of moving comments into a fieldable entity is that it provides a wide range of flexibility. We can add additional fields if needed along with additional display modes to output comments.
In the case of our Post content type, we already created a relationship to comments to expedite our theming, but we should take a moment to review how that was done and then move on to printing comments in our Blog detail page.
Introducing Comment types
Comment types can be located by navigating ...