I'm not sure if you're asking a rhetorical question, but I believe it's because (whether right or wrong) the linked thread is perceived as belonging to the "redpilled, conservative, traditional masculinity" subculture.
The flagged thread is flagged, not downvoted. 45 points, 87 comments.
I doubt RAND[1] and IPSOS are in the redpilled subculture, that's quite the reach.
Not everything touching on men's problems in the current age is redpilled
[1] https://www.rand.org/about.html
>The RAND American Life Panel and the Ipsos KnowledgePanel are nationally representative probability-based survey panels of adults in the United States
this is what's killing HN (and everything else, tbh)
While HN is not great on politics, I'm not aware of any decently large (or small!) community that is.