How to unsubscribe from emails?

I've been following the upcoming changes discussion, and I signed up for additions to the thread to be emailed to me.

Aarrgh, there are thousands of crushers who are unhappy! (Me too.) And my inbox is being deluged!

How do I unsubscribe from these emails, or end my membership of the King community even?

Perhaps I shouldn't be surprised, but I can't find that information on the website.

Help!!