I think of HN (And really, any other website driven by user-generated contented content like reddit and forums) to be social media but not a social network. I

I think of HN (And really, any other website driven by user-generated contented content like reddit and forums) to be social media but not a social network. I consider social networks to be a subset of social media where the focus becomes following specific users and having a feed consist of posts made by specific users, whereas reddit has a feed consisting on posts on specific topics.