User blog comment:MisterWoodhouse/The future of Chat/@comment-7180588-20200805215336/@comment-1824272-20200805220125

More fun with numbers, let's use Jr Mime's stats and say that we get 345,600 edits per day on average and his guesstimation of 2000 chat messages per day on average.

That means chat is not 1%, not 0.1%, not even 0.01%, but a little less than 0.006% of editing activity.