[pjc50]

Nobody like talking into a void. Audience feedback is necessary for most people to bother continuing to do it.

[dgb23]

Perhaps there are better methods for that, like email.

Another one is to require a paid subscription to comment. It’s a filter for low effort spam.

[rchaud]

Emailing comments is possible even with a comment system, assuming the site owner discloses it. But it is invisible to others, as most blogs are not going to curate emails into a "Letter to the Editor" section of the website.

Substack is an email newsletter platform and even that has a comment system.