In my experience trainers often create a forum without changing this
mode to "auto subscription " or "forced subscription". They then write a
post and expect this to be sent by e-mail to all course
participants, which does not happen as subscription is still set
to"optional".
So as an Admin I would like to be able to set the default for forum
subscription to "auto subscription " or "forced subscription".
You might also want the default setting to be "subscription disabled".
I have just created the following Tracker-Issue:
You can vote for this.