https://news.ycombinator.com/item?id=39440354
[dupe]: https://news.ycombinator.com/item?id=39440354 (optionally tagging dang depending on the severity)
That's all that's necessary. Mods here do have the ability to combine and collapse comment threads into the larger post, so this is a fixable issue on HN.
There's no such thing as tagging anyone on HN; if you want to get mod attention, there's an email address listed at https://news.ycombinator.com/newsguidelines.html
https://news.ycombinator.com/item?id=39426902
https://news.ycombinator.com/item?id=39440354