The proper way to deal with such issues is to email the mods at hn@ycombinator.com.
This is in the HN guidelines: "Please don't post on HN to ask or tell us something. Send it to hn@ycombinator.com."
<https://news.ycombinator.com/newsguidelines.html>
The post yours linked to appears to have been removed, so the immediate problem has been resolved.
(Not a mod, just an active participant.)