Trust_not
If you are referring to the setting:
Use 'Email Notification' by default? NO
Using this option emails you whenever someone replies to a thread that you have participated in.
If this setting is set to no, the checkbox for email notification is unchecked by default when replying to a thread. If you then manually check this box or subscribe to the thread you will get the e-mail notification.
The ONLY advantage I can see to subscribing to a thread would be to get the e-mail notifications when someone replies.but the ones that i do subscrobe to keep sending me notifications
If that is not the option you were speaking of please point it out.there is an option in the site options that either enables or disables the email notifications to anything