I sent a pm to eric nguyen and he cancelled my subscription
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There does not appear to be an option to do this in the user profile (nor to subscribe if you didn't originally). I'd suggest sending a PM to Eric Nguyen https://www.instructables.com/member/nagutron/ , and both ask him to do the unsubscribe for you, and also suggest adding this option to user profiles.
I did this and he just seemed to make it so that I cant click into the e male but I'm still getting them.
Usually when you subscribe to a newsleter it has an option at the bottom of the email. try searching around there. If not, email them back from the address they sent it from.