I couldn't find the blog post itself but I found a Guardian article on it https://www.theguardian.com/technology/2016/feb/17/san-francisco-tech-open-letter-i-do

I couldn't find the blog post itself but I found a Guardian article on it https://www.theguardian.com/technology/2016/feb/17/san-francisco-tech-open-letter-i-dont-want-to-see-homeless-riff-raff https://www.theguardian.com/technology/2016/feb/17/san-franc...