Re: List traffic

Excerpts from Marc G. Fournier's message of jue may 13 23:11:40 -0400 2010:
> On Thu, 13 May 2010, Joshua D. Drake wrote:
> 
> > Between labels, filters, watch lists and all the other goodies any MUA 
> > will give you, I see no reason to have this all broken out anymore.
> 
> So, if one merges all the lists into one (not arguing for / against that), 
> how do you filter?  Based on what?  Right now, ppl filter based on the 
> X-Mailing-List header, or just the Participant ...

If most of the questions are badly categorized or cross posted to more
than one list, how useful a label is the X-Mailing-List header?  How
useful is to filter on the "pgsql-general" label?
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