In order to make fetch (the FreeBSD downloading tool) ask for
username/password when it encounters a password-protected web page, you can set
the environment variable HTTP_AUTH to 'basic:*'.
If you have a fediverse account, you can quote this note from your own instance. Search https://mastodon.bsd.cafe/users/fbfortune/statuses/115413224291914678 on your instance and quote it. (Note that quoting is not supported in Mastodon.)