Hosting comments on a blog has a non-zero cost. There's infrastructure required to support them, security concerns, and then content concerns. For all the poten

Hosting comments on a blog has a non-zero cost. There's infrastructure required to support them, security concerns, and then content concerns. For all the potential costs there is vanishingly little utility in self-hosted comments. A comment section on a blog only makes sense in the world of spherical cows and friction-less pulleys. The vision is a blog post will start a conversation with readers. The reality is that spammers and trolls will necessitate moderation that will quickly eat the time a blog author might spend having conversations.