What to do with a spammer who subscribed to my email list?

I Googled the email address of one of my email list subscribers and got a page saying they are a spammer. The page was on this domain: https://cleantalk.org/

What should I do about it? Unsubscribe them myself?

Submitted September 12, 2020 at 03:02PM by dougitect https://www.reddit.com/r/Blogging/comments/irorez/what_to_do_with_a_spammer_who_subscribed_to_my/?utm_source=ifttt