It is working! I mean, the glue, not the notification emails.Pure conjecture, but maybe this is DCG's way to keep us all glued to the forum as much as possible.
Open 11 windows.
10 windows for 10 different forums.
1 window for User CP
Keep you hand on the mouse and click refresh once every 30 seconds.
It works for me. There is no need to check your email.
No notification since Nov 02, this issue is still hanging till now...
Look like the email notification is working.
I received one from a thread that I subscribed.
Assume it should be ok with PM notification.