@JeremyCherfas I don't do post kinds. Just haven't warmed up to the plugin because it's default is custom, and not a WP 'post'. But yeah, one-line comments are what I want to do. Let's see what I land up using.
Cook talking about magazines on Apple News+ reminds me of all the free mags I have through Prime Reading. I wonder how much the readership on those is.
Indieweb & adjacent ppl - I see a lot of sites with webmention links, but don't want to reply full scale on my blog with 1 line comments. What's better - a separate 'blog' for comments or a page in WP that links to their post and does a 1 line comment?