I was curious about the impact of the pronoun "discussion" so I ran your query by day for the last month, I also threw in a comparison to neutral pronouns as a point of reference.
Unfortunately the last SEDE dump is from 6 October so we can't see any impact from the CoC change until the next dump.
As you noted this does not include deleted comments.
But here is "gendered" comments vs "neutral" comments as a percentage of total comments by day for the last month (up to the last SEDE dump):
Hard to see too much impact from the prior discussionschange. I do noticeThough a slight lessening of both typesperson declaring their pronouns as "he/him" or "she/her" will result in more uses of gendered pronouns over the last month thoughinstead of less.
I will try to update this when the next SEDE data is available.