Awesome visualisation, and great write-up. On mobile (in portrait), a lot of longer titles get culled as their origin scrolls off, with half of it still off the other side of the screen - wonder if it'd be worth keeping on rendering them until the entire text field is off screen (especially since you've already got a bounding box for them).

I stumbled upon [1] using it that reflects your comments on comment sentiment.

This also reminded me of [2] (for which the site itself had rotted away, incidentally) - analysing HN users' similarity by writing style.

[1] https://minimaxir.com/2014/10/hn-comments-about-comments/ [2] https://news.ycombinator.com/item?id=33755016