Threading of messages in the list?

[Skip Montanaro]

    Adriano> I notice a lot of the threads are completely broken, with new
    Adriano> Re: messages starting as new threads, etc. Is it a problem with
    Adriano> my settings, a bug, a misfeature, a definite feature, something
    Adriano> due to the fact that this is linked to a newsgroup?

It's probably a side effect of 

    1. the gateway between the mailing list and newsgroup, and

    2. broken mail user agents or newsreaders which don't properly
       propagate/generate References: headers.

Skip