What happens if you divide it not by comments, but by commenters? How much is sentiment being shaped by a vocal minority who is always saying the same thing, and how much does it seem to be a broad-based sentiment among the overall audience that occasionally responds?
absolutely. One fun thing I learnt about reddit is how blocking just a few hyper commenters can suddenly make a post 10x calmer. You should definitely take into account the frequency of the users commenting with data like this.
What happens if you divide it not by comments, but by commenters? How much is sentiment being shaped by a vocal minority who is always saying the same thing, and how much does it seem to be a broad-based sentiment among the overall audience that occasionally responds?