Final answer:
The statement is false - blaming the reader and expressing anger is not effective in writing.
Step-by-step explanation:
The statement 'Use 'you' to blame the reader because otherwise the reader won't know how angry you are' is False. In writing, it is important to use appropriate language and tone to convey your message effectively. Blaming the reader and being angry can come across as rude or aggressive, which is not conducive to clear communication. Instead, using neutral language and providing clear explanations can help ensure that your message is understood without causing unnecessary offense.