Excellent reply, thank you. To me, it still seems more about people's gripe over the very existence of interfaces. If anything, using IUser in lieu of User is

Excellent reply, thank you. To me, it still seems more about people's gripe over the very existence of interfaces. If anything, using IUser in lieu of User is a pretty clear signal to, say, an uninitiated developer, that you shouldn't be attempting to create an instance of "IUser."