...When the email gets to be long or quotes previous nested emails in their entirety I tend to just move on and ignore the post...
FWIW, it is exactly my case: not enough time to follow these loooong emails. The mailing-list discussion mode makes it very hard to work on such (important I'm afraid) design issues collectively.
Not that I have a solution, just wanted to reinforce what Ralph is saying. Or maybe one suggestion: if the people involved in these discussions could post [SUMMARY] messages as a kind of checkpoint along the way from time to time, it might help more people get involved based on what's been agreed in the discussion so far.
-Bertrand
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