They're on debian-devel, and I'm sure the hivemind fill find them quickly enough, but sure: https://lists.debian.org/debian-devel/2014/05/msg00585.html (and yes, they got pushback, but it took approximately that much until people said WTF).
Thorsten has always been a jerk. I don't think systemd is a new trigger, but it's interesting to see him show up (though I'm not surprised). He used to haunt the OpenBSD lists a decade ago, but was basically sent packing after all his "contributions" were rejected.