I'm a very average HN commenter. I do put in effort in writing here, trying to be civil above all and sharing my experience where it could be of interest. But I'm not Alan Kay, I've never rewritten a distributed deep learning system in Haskell using a genetically optimized Paxos consensus protocol, and my entrepreneurial experience is a loose string of "don't do this" case studies at best... So my comments certainly won't make anyone's "Best of HN" list.
Last week, after the news broke that Salesforce walked away from buying Twitter, I was about to write a HN comment about what Twitter could do. The text got long enough that I decided to expand it into a Medium post instead: https://medium.com/swlh/twitter-could-be-the-next-mozilla-e7...
To my surprise, the post has 28,000 views and 755 recommends so far. If I had written it as a HN comment, it would have got maybe 5-10 upvotes and perhaps spawned a short discussion thread about how unrealistic my idea was. (Please don't bother to criticize the content of the blog post in replies here -- I'm just using it as an example of blog vs. comment.)
I love reading HN discussions... But maybe there could be a site that slots between the HN and Medium formats, and lets you expand your comment into a blog post with minimal friction? Call it "HN Long-Form" or whatever. Ideally it would interface with the HN comment system so that you could mark your comment with something like "Promote to long-form" after you've written it. That would create an editable post on the long-form site. You could then later expand your comment there, and publish it on the long-form comment aggregator site. (Maybe I should just build this myself and see if it feels right.)