How has this been upvoted to over 40 points when, judging by the comments, literally not a single person has been able to read this paywalled article? I know H

How has this been upvoted to over 40 points when, judging by the comments, literally not a single person has been able to read this paywalled article? I know HN is fine with paywalled articles, but usually they're from major sites that at least some people have access to, and somebody is able to post a non-paywalled link.