Lennart Poettering is 'famous' for creating
pulseaudio stack, here is a commit from his latest 'art' named
systemd.
Code:
+ log_warning("/usr appears to be on a different file system than /. This is not supported anymore. "
+ "Some things will probably break (sometimes even silently) in mysterious ways.");
COMMIT:
http://cgit.freedesktop.org/systemd/...c2b53a3ca8c2fa