If you look at threads on places like Reddit, there is usually a lot of interaction on two types of posts: a) topical posts where people have a lot of opinions they want to share and b) posts where the opening poster interacts with other commenters.

On Hive, a lot of people "post and run" - they write their article, wait for the automatic votes to come in, and never interact in any way with comments. No reply and no upvote. People give up commenting because it is hard to have a conversation with an opening poster who is ignoring you.