I computed a huge list of 500 top PDFs from Hacker News in 2018 if you're interested:<p>Over 500 Top PDFs posted to Hacker News in 2018:<p><a href="https://getpolarized.io/2019/01/08/top-pdfs-of-2018-hackernews.html" rel="nofollow">https://getpolarized.io/2019/01/08/top-pdfs-of-2018-hackerne...</a>