I completely agree. I wrote a post awhile back about what Steem is missing and how a huge amount of interaction on Reddit is actually comments. Many times, the best part of a Reddit post is the comments.

I have been trying pretty hard to up vote comments on my posts and other peoples posts. People seem to be too stingy with their up votes, only up voting posts for the curation rewards or whatever they think is gonna happen. 

I think there is a lack of interaction on Steemit that needs to be worked on!