Changing people's email address on them: Always cool.

From an email sent today by Ronald C. Bonig, GWU Vice President and Chief Information Officer. I'm 90% certain this email address change was not necessary to convert to Gmail:

As you might have heard, we have introduced a third party email system for students and alumni - we will now be utilizing the Google Mail interface. This is a vital component of ensuring a successful academic and social experience for our students. All student accounts will change from NetID@gwu.edu to NetID@gwmail.gwu.edu.

Quiz: Which of these is the worst idea?

A) Changing people's email addresses on them.
B) Making people's email addresses longer.
C) Using both "GW" and "GWU" in an email address.
D) All of the above.