The spamming has stopped. Yay!
Details-
I had a prior username before Bob P. When the migration occurred, several things appeared to have happened:
1) My old username got an email for every reply to every thread in which I had participated
2) My new username got an email for every reply to every thread in which I had participated
*note both old and new usernames are assigned to a single e-mail address.
3) My LabVIEW RT "send an e-mail immediately for every message" subscription had been transformed into a LabVIEW "send an e-mail immediately for every message" subscription.
*note this became a problem fast because the traffic on LabVIEW is about a 1000 times greater than the traffic on the now non-existant LabVIEW RT board.
So, if anyone had switched usernames at least once before the migration happened, and you're receiving a ton of emails, now you know you're not alone. Unfortunately, I do not know what the official procedure is to correct this type of problem, otherwise I'd post it here.