> I have been a member of this site for about a month, and note that the vast majority of comment consists of a few words of encouragement, but nothing more substantial or sophisticated

Yup, I mentioned that in my review, either 1) not good comments or 2) not being seen by people or SP holders to upvote and reward enough, that's why it was at 1% of total rewards to commenters that month. There are some people who put more effort. I think more interactivity features would get people to put more effort into commenting. Consciousness and attention needs the tools to be directed towards new comments anywhere, like the comment tab.

Thank you for your feedback. I appreciate it.