It's hacker news, not academia news.

Dismissing something for lacking formal academic review is counter to the ethos of the site, and the link itself mentions that verification is coming in a month and there's at least a loose consensus of actual people that this might be valid.

If they'd said "excited to see if this replicates in November!" I would have at least believed that they'd read the link and/or had some interest in the topic.

I don't see any value in "this topic doesn't interest me", though

The color of truth on HN.

That's the usual state of things. I even vouched for a green comment because it was in a spirit yet for some it was not.