To subscribe to a Google Groups mailing list without having to run non-free JS or have a Google account, send an email to:

<group-name>+subscribe@googlegroups.com

That seems to have worked, but we'll see if I actually start getting messages.

After @cwebber's talk about Guile and Racket in which he mentioned a mailing list, I figured I'll start lurking on racket-{users,dev}. I was disappointed to learn both of them use Google Groups. I still don't know how to browse group archives without JS; if anyone knows, lmk. Otherwise I won't ever be able to send anyone links to such conversations (I can send message-id, but users would need to have copies in their own mailbox to avoid having to run non-free JS).