That's the exception that proves the rule! The ONLY examples you can give when privacy is acceptable is when it exists to serve anonymity! That's because the person who is presenting a message is unrelated to the content and meaning and value of the message itself. Just like how it's acceptable to hide a password because it's devoid of meaning, so too is it acceptable to hide an associated identity because it's devoid of meaning.
Again, privacy is bad. Meaningful ideas should never be hidden except in service of the meaning itself. The only things that truly require privacy are disgusting and shameful and I wish they were public so we could all see and understand disgusting people better. The people who we most need to understand and interact with are those who refuse to act and interact in public.
