Is systemd within a Docker container still?recommended?

[Bruno Wolff III]

On Mon, Mar 02, 2015 at 15:02:23 +0000,
  Dave Melia <dave at thinklinux.co.uk> wrote:
>I didn't intend to hijack, I used reply-all to get the email address 
>to save typing it.  I was merely being lazy, and forgot to change the 
>subject of the email before clicking send...

That's what they were telling you not to do. When you do a reply there 
are headers added to your message indicating the message you replied to, 
and changing the subject doesn't remove them.