And it seems that something like the 90-9-1 rule is in effect - with over 7,000 comments, the top non-dang contributor is more than 100x as prolific as contributor #10,000.
The top 20 percent represent 1519843 of the total comments, or just over half (55.56 percent).
Though at the top 2k, you're still writing 359 comments per year which is a lot, so I guess the real list going down to comment count = 1 might look a lot more like an 80/20 split.
Would love to know the distribution by karma as well, yeah.