[ck2]

For everyone replying/panicing about this approach:

Google gives you two options when you hit spam,

   1) just unsubscribe 
   2) unsubscribe and report spam.

I'm surprised those with newsletters haven't tested this.

Oh and if you auto-subscribed me for anything other than me specifically adding my email to a "subscribe" form - you deserve to be spammed. Signing up for a site isn't a newsletter opt-in by itself.