For example, I opt out of all emails from a website. A year later they make a new newsletter and auto subscribe all to it.
I login, hit unsubscribe, then report as spam in my email client.
I figure auto adding me is more/less spamming me. Do y’all agree?
No …He’ll no. That’s spam. Some of those newsletters likely come from unscrupulous sources that will instead use the “Unsubscribe” link as an engagement metric that confirms your email account is still active so they can bombard you with even more spam. You’re just doing your part at keeping the spam filter up-to-date