This was already posted just yesterday: https://news.ycombinator.com/item?id=39714502

The reality is we've known peer-review is leaky, less we forget the Grievance studies affair[0].

0: https://en.wikipedia.org/wiki/Grievance_studies_affair

So much for the value of peer review.

I can still remember only a couple years ago when no one on HN would read your sources because they were "pre-print" and hadn't been peer reviewed