Discussed in the past. Searching for these was difficult because there were a lot of other submissions with similar words, but add "pdf" to the search and it reduces to a single page, I think I've copied all the submissions with comments:

https://news.ycombinator.com/item?id=24867685 - 156 points by Schiphol on Oct 25, 2020, 29 comments

https://news.ycombinator.com/item?id=20052496 - 127 points by sridca on May 30, 2019, 6 comments

https://news.ycombinator.com/item?id=13800320 - 1059 points by lainon on March 6, 2017, 154 comments

https://news.ycombinator.com/item?id=3741281 - 138 points by r15habh on March 22, 2012, 25 comments

https://news.ycombinator.com/item?id=3694448 - 204 points by epenn on March 12, 2012, 23 comments

https://news.ycombinator.com/item?id=1935049 - 118 points by porter on Nov 23, 2010, 27 comments

https://news.ycombinator.com/item?id=1738670 - 145 points by signa11 on Sept 29, 2010, 13 comments

>1059 points by lainon on March 6, 2017, 154 comments

I wonder what was so special about this particular instance, other than it being the only Monday on the list.