Perhaps I'm not quite reading your meaning properly, but I'm curious about the portion about your having turned off comments. I also notice your link requesting to "Comment on this at Medium". Both seemed odd to me as some of the benefit of having an indieweb site is having things set up to have better two way communication with others, while still owning the and having control and agency over the conversation.
This being said, I have, however, been considering turning off generic public (and anonymous) comments in favor of receiving comments only via webmentions. I think the fact that users who wish to comment on my content needing to post it on their own site first helps cut down on the spam and poorly thought out me-too commentary.
To some extent I think this was the tremendous value of Tumblr's not having a native commenting system. In their paradigm, to comment on something, one needed to put their commentary into their own personal stream first to be able to push the comment to the receiver's site as a secondary action. The social consequences of this are much stronger in terms of cutting back on a lot of junk, spam, and personal attacks because it becomes personally identifiable as representing themselves first and foremost (especially on their own site). Some of the problems Twitter and others have stem from users not really owning their content or their identities on those platforms which makes it much easier to become a nameless/faceless bully.
In some sense I think of it by analogy as a "Christmas tree effect". One purchases a wonderful Christmas tree and only puts up the useful and pretty decorations on it because it's what they and others who visit will see in broad view--often even publicly through their window from the street outside their home. Very few will go out of their way to buy a shabby looking tree and festoon it with dreadful ornaments as it's something ugly that not only they see constantly within their own home, but which will publicly brand them as such to friends, family, and even outsiders within their community.
Separately, thanks for the example your site provides. There are many subtleties you've got within your theme that I've been slowly working my way toward as well. I appreciate the way you've laid out and delineated the content. I also love the idea of a microcast which is something I've been contemplating for ages, but have never gotten around to actually doing. Your version and conceptualization are inspiring me to take another hard look at actually doing something.