People on HN complain how a substantial amount of the comments are negative. I give my honest opinion, as a doctor, knowing full well how hard it is to not only clear the hurdles to get to where they are at, but I also appreciate that it is a worthwhile endeavor. In an era where half of the people in tech are wasting their lives optimizing SEO and to sell more ads for useless crap, these people are out there making tangible improvements in people's lives.