Once established, people often overlook the lack of engagement. I believe engagement is just as important as writing.
Naturally, as your audience grows, it may become impossible to respond to every comment but acknowledging them with claps shows you are not completely detached.
I recognize that I am responding to a commenter you’ve mentioned. Comments are extensions of our work. We should strive to understand each perspective. We may find that we don’t, in fact, know everything.