Would it be possible to get versions of the files to see when certain words got added and I imagine certain words got removed? Could be interesting to correlate certain events, personalities, trends, memes, controversies etc with the changes.
It was added in 23 so there's potentially 3 years of updates.
Edits: This comment shows differences between 15.6 and 26.2 https://news.ycombinator.com/item?id=50358223