No Rings Kissed does not utilize a standard email marketing platform to run its newsletter. However, it's also a huge pain to provide a one-click option on one's own that won't be plagued by bots, and also not run afoul of new privacy laws.
To combat this, this newsletter is old-school: to sign up for the newsletter, please either use this mailto option here, or reach out to noringskissed@proton.me with the following template:
Subject: New Signup
Body: List your email address and name one song that reminds you of your childhood, and why.
Failure to follow the above template will result in your email address not be signed up for the newsletter, so make sure to follow it! Thanks. <3