Councilors,
A tool called BigBang, by the fairly well-known IG researcher Niels ten Oever, has been built to analyze public mailing lists, particularly with a focus on I* and similar organizations.
It can be found here:
https://datactive.github.io/bigbang/
All 614 ICANN mailing lists that have been aggregated can be
found here:
https://github.com/datactive/bigbang/blob/main/examples/url_collections/mm.icann.org.txt
I don't know what implications this may have. They have pre-built modules (Jupyter notebooks) to analyze trends in words over time, participation by gender, and all sorts of things.
For you to evaluate.
Best,