I've said this downthread but I'll say it again:

Rendering someone's content inaccessible without any means to get it back is outrageously insidious. It violates the implied social contract you have with your users. It's gross.

This would be just about tolerable had they renamed it – preserving all of her social network links – and then told her about it. Frustrating and possibly even humiliating, but at least not actually destructive.