This is actually not on handwritten.blog, but on the site of the person where I got the original idea from! Maybe I can incorporate something like this on handwritten.blog too (e.g. a way for people to send in comments via email).

Following the handwritten comments brought me there, which I found to be HN-worthy: https://mzucker.github.io/2016/09/20/noteshrink.html

Also, as a sign of our times, it hyperlinks to what might have been a Microsoft tech page/knowledge base in the past, now completely replaced by poor taste LLM advertising slop. Good work, Microsoft.