That's the systemd article, and this is the forum post explaining why arch moved to systemd: https://bbs.archlinux.org/viewtopic.php?pid=1149530#p1149530
Scroll down to the long post by tomegun.
I kinda get the animosity now. I wasn't really using Linux at the time, but if I was, and my system was running great, and then I had a list of complicated instructions I had to perform to change my init system... I'd probably be peeved off.