Amy, did you try overlord's "unwatch" - "watch" trick to get email notifications going for thread subscriptions prior to the import? If so, did it work? Has anyone else tried? I'm working with the developer to see if we can run a script to do this for everyone at once.
No, because I have always had email notification off. (I just asked him for the specifics in case someone else asked me)
Maybe try @AKgramma she was one person wrangling the problem...