[kwijibob]

This is a bit cynical.

Mailchimp emails are well known for having 1 click unsubcribe by default.

There has been a huge resurgence in email newsletters for companies and content creators to have a direct relationship with their audience.

Mailchimp have done well because email seems to continually survive as a medium.

[SilverRed]

Sure, they do make it easy to unsubscribe, but every user of their system seems to sign you up without consent or tricks you in to it somehow because I do not want a single newsletter in my inbox but I am constantly unsubscribing to mailchimp newsletters.