The law has not decided that a corporation is a person for all purposes. For example, let's see what happens if Nokia sues, asking for damages for personal distress it received and demanding funds to consult a psychologist.

Yes, based on my credentials as a bona fide human being, I think that harsh comments about public figures are ok, as long as they don't infringe other rules, such as the one barring political commentary. If asterisks didn't save us from obscenity, I think that would not be permissible here.

Of course, I am not emperor here and the powers that be can enforce any misconceived principles they like.