What I mean by having nothing to do with it is that it has nothing to do with any issues we might be having with lightdm.
Also my first post was a heads up about a lightdm feature because I believe most people on this list that are using it are new to it just like me.

BTW, I'm not a programmer, but as an end user I have only good impressions about systemd and although I'm a Fedora user now, I used Debian quite a bit, used systemd there too (in its very incipient implementation) and I believe Debian would benefit by switching to it on the future, like several important distributions (that don't think they're the only one in the world) did.