Will be available in 1.18.4
how to change default user profile setting?
There's a relevant discussion going on here https://community.nodebb.org/topic/2383/email-integration-confusion/4
Maybe we can have that as a setting. That said, in Canada we are not allowed to email people unless they explicitly sign up for it, this law might be the case elsewhere. Which would mean we would have to create a new checkbox on registration to allow users to enable email notifications