The annoying part for me is Pi-Hole often blocks those unsubscribe links - understandably so, it’s literally a link to a website operated by the exact spammers Pi-Hole is trying to block. I’ve started taking advantage of my email service’s alias feature. Anytime a site wants my address for something, I just generate an alias address (that I can disable/delete at any time) that redirects to my regular inbox. And since the alias address typically contains the site’s name, I know exactly who sold my data if I start getting spam from something I never signed up for.