[LightDM] Moving mailing list from freedesktop.org infrastructure

[Adam Nielsen]

> Google Groups are still a thing. Seems like it might be a good middle ground between a modern forum and a mailing list.

+1 for Google Groups.  While you need a Google account to create a new
group, you don't need an account to join a group, just an e-mail
address.  It then works like any other mailing list.  You can typically
subscribe by e-mailing [groupname]+subscribe at googlegroups.com (or of
course through the web interface with your Google account).

If you DO have a Google account, you can choose which address you want
messages sent to (or to get no e-mails at all if you only want to use
the web interface), and adding a non-GMail address to your Google
account is an option as well.

You do need a Google account to post via the web, but that's no
different to any other web-based forum.

You can get RSS and Atom feeds of new posts, by going into the group's
web interface, clicking on 'About' and choosing your preferred feed
(there are different feeds depending on how many messages you want to
get at a time).  The RSS URL typically looks like this:

  https://groups.google.com/forum/feed/[groupname]/msgs/rss.xml?num=15

You can choose whether you want a feed of messages or topics (new
threads) which is also nice.

Of course you can't reply to messages via RSS so you'll need a Google
account to reply via the web if the RSS feed is your only method of
accessing the list.

Cheers,
Adam.