I mostly agree, but a generalized attack at the remaining GitHub workers by calling them "losers" and then "rookies" is unwarranted and leaves a bad taste IMO.
See the edit history here: https://news.ycombinator.com/item?id=46133179
Edit: 1. just to be clear, it's very good that they have accepted the feedback and removed that part, but there's no apology (as far as I know) and it still makes you wonder about the culture. On the other side, people make mistakes under stress. 2. /s/not warranted/unwarranted/