Jeremy: I am very impressed with your attention to user problems! I’ve looked at most of the links you are providing, but not having any luck. I have the same problem. People are “Subscribing,” but it’s not working. Some get the confirmation and some don’t. The ones who get the confirmation and approve still aren’t getting updates. And for some, it’s working fine.
My site is http://www.MorrisMatters.com
Can you take a look?