The point of the book was that Anne wanted to record her thoughts. She did a partial revision herself with a view to publication after the war, including the redacted parts. Others have created their own polemics with it.
It seems odd that what a normal 13-year-old writes can be seen as unfit to read by other 13-year-olds until it says what other people want it to say. If all you want is ideology, you might as well write a work of fiction yourself.
You're correct, her point of writing was to record her thoughts. When I said point of book I meant the reason it was originally included in school curricula.
How in the world did she manage to edit her diary after the war when she died in Bergen-Belsen concentration camp a month before the camp was liberated????
Anne died before the war was over. She didn’t do any editing after the war.