How do I set the default thread subscription for new users?

[tcarr9]

We want new users to have their profile set to automatically subscribe to any threads they start or reply to, with email notification. I didn't spot this in the AdminCP other than setting it individually for each user. Is there a way to make this the default?

Yes, I could do an SQL command to force the change on everybody, but that wouldn't catch users who register after I do that, and might upset users who had already turned it off and don't want it on.