i'm the article's author. a moment ago, i came to hn as i normally do throughout the week. my heart skipped a beat* when i saw my tc post was on here; i didn't tell anyone to upvote. for whatever that's worth.
* it's unfortunate that my reaction to seeing myself on hn is less "cool, readers!" and more "oh no, i'm about to get ripped apart in the comments"
There’s been some talk about this in other threads, but I’m still confused how it could tell the difference between a voting ring and a legitimately popular article without having many false positives.
I’m curious about this too, but I don’t think they’ll talk openly about it. For some hints, you could probably look at what data Google reCaptcha collects. The newest version (v3) doesn’t even require a user to click anything except a single button.
I bet Reddit and HN use timing, browsing time, clicks, and mouse movements, among other things to tell if a lot of visitors are just coming to the site to upvote a single story or are genuinely browsing the site before coming across something interesting.
The flip side I don’t hear about is using up/down votes to shape discussions. You’ll often read discussion on the same topic with drastically different sentiment at the top.