I would want users to be able to change their profiles. A “Friend” can become an “Enemy” and an “Enemy” could become a “Friend.” Users should have that choice. Yes, Enemies are expected to lie and change their profile to “Friend” so that they could post where they’re not welcome to post. An Administrator should be able to override their hypocritical profession (settings) and make a permanent determination if a poster is in the “Friend” or “Foe” category.