The author of systemd, Lennart Poettering busts some systemd myths in his blog post http://0pointer.de/blog/projects/the-biggest-myths.html
> 2. systemd's journal files (handled by journald) are stored in a complicated binary format.
Mr Poettering tackles the myth that configuration files are binary (they are very obviously not).
That said, I am not sure how to get the journaling data in an Upstart system, nor in a sysvinit one.