[arch-general] Services with DefaultDependencies=no

Hi, While going over .service files on my system, I noticed that quite a few of them, not belonging to systemd package, contain DefaultDependencies=no (DD=no). This is understandable (perhaps) for programs like systemd-journald, but what about normal daemons, like rpcbind, haveged and rpc-nfsd? I thought that setting DD=no is kind of a hack needed only for special services (e.g. called from fstab via x-systemd.requires=). Or am I missing something? Thanks, L. -- Leonid Isaev