These things are internet hell.
Let R = { people who read mailing list archives }
Let D = { people who design and implement mailing list archives }
My conjecture: R ∩ D = ∅.
Try the "Messages sorted by: ... [ thread ] ..." link, it gives you a hierarchical view that's pretty understandable / navigable IMO.
Not sure how to link a particular article in that view. The 'direct link' sends you to an article-only page. But the message by the OP appears as the third top-level thread in that view.
You get to that by clicking on the subject in the bottom frame.
These things are internet hell.