“In spite of everything I still believe that people are really good at heart. I simply can’t build up my hopes on a foundation consisting of confusion, misery and death.”
To protect Anne Frank from being exploited, the foundation that benefits from her diary has now decided that it wasn’t actually her diary at all, but rather a work by Otto Frank based on her diary, but which he fairly should be acknowledged as being a co-author. See here for more details. The ramification of this, is that instead of entering the public domain in Europe on January 1 next year, it will remain protected until 2050 which is 70 years since Otto Frank passed away in 1980.