One of the biggest disadvantages of static site generators is that they are static and can’t include comments. There are multiples solutions to solve this problem. You could add a third party blog engine like Disqus, but this has the drawback of including a third-party tool with a bad privacy record in your website. Another solution would be to host an open-source alternative but this comes at the cost of a higher maintenance burden.
The Social Web Protocols are a collection of standards which enable various aspects of decentralised social interaction on the Web. This document describes the purposes of each, and how they fit together.