Well yes, if I understand you correctly
Don't know if it works
retroactively though, which is probably what you are indicating. On second thought, perhaps it will work retroactively.
In
Edit Options, in the second section under
Default Thread Subscription mode, choose
No Email Notification. (Or choose the Notify, if you want to get all those emails
)
At the moment, it's probably set on
Do Not Subscribe, since you are asking the question here.
PS...this also subscribes you to every thread in which you comment, but you can 'unsubscribe' to that individual thread after commenting, if you wish. Though I'd want to keep track of that as well.