This does seem to be the idea behind HN (solving the quality discussion problem), so is not a bad place for it, but I think people would frown on every blogger

This does seem to be the idea behind HN (solving the quality discussion problem), so is not a bad place for it, but I think people would frown on every blogger auto-submitting every post, creating a blank discussion that can be linked to from the original. (Ie, using HN like Disqus, without the embed-ability.) It also feels like a reinvention of Usenet to flip every URL into a named-discussion (group).