We would like an option in the system wide Admin settings to be able to set the "Send email notification" default to OFF when creating a new course. We had an incident recently where someone who has not needed to create a course in a long time did so and forgot to toggle off "send email notification". This resulted in many "send session enrollment" emails being sent out and leading to lots of confusion and damage to our organization's credibility.
This simple default option would alleviate this risk for us and all your customers.