"etc/rc.d is quite sophisticated for what it does, but the paint on /etc/rc is obvious"
"Too many things need to know explicitly about dependencies"
"Even the Linux die-hards have essentially grasped the necessity of systemd"
Talk is by Jordan Hubbard, FreeBSD co-founder (https://en.wikipedia.org/wiki/Jordan_Hubbard)
Discussion at https://news.ycombinator.com/item?id=8645188, video at https://www.youtube.com/watch?v=Mri66Uz6-8Y (49 minutes)