There are more authors on the second page.
* Are "we" in such a huge hurry that we don't look at our scrollbar to see if there's more to the document that we're viewing?
* How did "we" get so incurious that we don't even attempt to scroll down to see if there's more information to read?
I mean -seriously- the intended audience for this particular open letter is technical people.
After re-checking the link:
Ah! See, the document that you are looking at is hosted on Github. At the time of my comment (~six hours ago), it was a two-printed-page document hosted on Google Docs. dang comments here: https://news.ycombinator.com/item?id=10907271 (four hours ago) that he changed the link from the Google Docs document to the Github document.
(And now that I know that, the wave of downvoting makes a lot of sense. (even though pvorb explicitly says that he's looking at a document hosted on Google Docs))
And yes, most of the time "we" are in such a hurry. At least I am most of the time. Time is limited.