These Massive Open Online Courses caused a controversy within the higher education community. Universities were afraid that MOOCs would take over a traditional brick and mortar classroom.
The majority of people who begin a MOOC come in, download the content they desire, and do not complete the course. The THOUSANDS of students who sign up for MOOCs are from all around the world! Some people cannot log in everyday for many reasons, like lack of power, internet, or a busy schedule. Everyone signed up for the MOOC can be in different time zones, making assignment deadlines difficult to arrange. As for discussions, there is no way a professor can monitor them. The sheer number of participants alone is unmanageable.
Overall, I think MOOCs are great for finding content and leaving, but I do not see a benefit as completing it like a regular college course.