you misunderstood OP, he doesn't want to unsubscribe, but he asked why does he no longer receiving the notificationsJust hit Unsubscribe from the thread you subscribed mate.. Click Threads tools at the top and hit that liltle unsubscribe button
Hope that helps!
you misunderstood OP, he doesn't want to unsubscribe, but he asked why does he no longer receiving the notifications
maybe it has been switched off as you said, the whole site hasn't worked properly the last few days until today