how do i set default to yes?

[Shaybloom]

<a href="http://gyazo.com/9762a81b7b91cb48ce0b41d6a8ffe78e" target="_blank">http://gyazo.com/9762a81b7b91cb48ce0b41d6a8ffe78e</a>

so tht all users have this as yes from default?

Also how do is set it such that they get email notifications by default for threads they have subscribed?

thank you.

[Amaury]

In the user registration options in the Admin CP.