Maybe I'm the last person to realize this?
Unlike a buyers email list...
Where someone can buy something from you and then unsubscribe from your list (because they've got access to their product through Kajabi or Clickfunnels portals) ...
If we deliver our courses in the classroom?
Folks have to stay in the group to keep access to the courses they bought.
So they're effectively always 'on our list'.
Reason #50-11 why a Skool community beats an email list if you can only build one or the other?
(But you should build both.)