b_b and I were talking about it, and functionality-wise the most useful signal would actually be to indicate the commenters you definitely didn't appreciate. That is, if I had to pick the people I did appreciate, it could be either a very narrow, or very broad selection, and drawing the line might seem arbitrary. However, it's always pretty clear to me when I don't appreciate a certain commenter. Although I do worry that it could create a negative vibe by having that decision to make.
It's a tough call. I'm not sure if any comment platforms already have individualized comment sections so there may be no template to base this off of. Could you instead just design algorithms that "know" what commenters you frequently "hubwheel" or respond to?