Heh. I think that "other poster" may also have been me... With regards to LE certs, I discussed elsewhere here the problems faced by the apt developers that ma

Heh. I think that "other poster" may also have been me... With regards to LE certs, I discussed elsewhere here the problems faced by the apt developers that make the obvious "just install a LE cert!" answer not actually workable for them - they rely heavily of volunteer run mirrors and local proxies. I don't know what Ubuntu's ISO download "server" really is underneath, it's possible they've got similar problems, where either they pay for all the bandwidth themselves, or they let people assume that an ssl secured connection to "ubuntu-mirror.usyd.edu.au" or "ubuntu-mirror.evilhacker.ru" is for some reason "safer" than an http connection...