[Users] Message-ID

[RW]

On Thu, 31 Jan 2013 22:53:06 -0500
Rich Pieri wrote:

> On Fri, 1 Feb 2013 03:25:07 +0000
> RW <rwmaillists at googlemail.com> wrote:
> 
> > Are you honestly trying to tell me that a sensible threading
> > implementation will identify the first message in a USENET or mail
> > thread by subject in preference to the message-id - that's nonsense.
> 
> Not at all. Message-ID should be preferred. What I'm telling you is
> that Message-ID isn't necessary to do it.
> 
> Which is what I wrote at the start of this digression.
> 
And I wrote "Aside from threading by subject ...", which I hoped
would preempt the argument you just made about threading by guesswork.

IMO the existence of unreliable  workarounds for something doesn't imply
that that something is not needed.