Originally Posted by Zhizara
Click on User CP to find subscribed threads. If you have posted to the thread, you need to unsubscribe so you won't continue to get emails.
That is for the user CP, so that you can see what you have commented on/contributed to. There is a user setting that enables/disables Email notifications(sent to the registration email address you used when you signed up for DC). When you click on User CP, it helps to have the subscribed threads listed, especially if it is a thread you are following. However, getting an email every time someone replies to that thread, alerting New Activity, gets old fast.