If I mark a thread so it automatically replies via e-mail every time somebody posts to it, how do I cancel this?
After a while, the e-mails get tedious, & can jam my box. 
See my post in this recent thread: http://boards.straightdope.com/sdmb/showthread.php?s=&threadid=111771
We’ll add this to the technical issues FAQ after we make sure it works as it’s supposed to.
It seems that the email notification (for me at least) is not currently working or is temporarily disabled. In any case, now under “Subscribed Threads” in my user cp, I just get the message “There have been no new posts in the last 0 days to your subscribed threads.” However, by clicking either the “Subscribed Threads” heading or “View all Subscribed Threads” I get a full listing of all subscribed threads.
Just FYI.