Hello friend. The most important role of a social network is feedback, if there is no interaction between non-users then there is no social network. All users would like to receive a comment of appreciation or a nice argument about their post.
Unfortunately, it is very common to find users who are indifferent to the posts of their peers and the comments left on their posts, this does not help in any way the growth of their profile on Steemit and in the communities that integrate it.