I like the personal notes included a ton, e.g. mentioning that he has struggled with depression personally, which I wouldn't have guessed, even if naively so. Being open and helpful with those topics helps a lot of people out in a serious way. Also love quotes like "I cannot say this enough: pick your peer group wisely because you’re giving them write access to both your conscious thoughts and your entire worldview".
Just reading this post makes it tempting for me to apply at Stripe (They apparently have 530 roles open, wow! https://stripe.com/jobs/search), especially given all the other positive comments I've seen about the company.