I have also determined that posts sent to the address listed on (1) https://lists.debconf.org/mailman/listinfo/debconf-team end up instead in the archives listed on (2) https://lists.debian.org/debconf-team/ and not in the archives listed on (1).
So I found my brilliant typhoon essay part II https://lists.debian.org/debconf-team/2018/02/msg00007.html and will put it on the wiki...