The document provides 8 do's and don'ts for building a chatbot. It advises to not get overexcited, go for deep learning directly, or directly encode state machines. Instead, it recommends considering the appropriate architecture. It also advises to use integration tests instead of unit tests, establish comprehensive logs, use existing annotation tools like Pybossa, and not underestimate platforms like Whatsapp. Finally, it suggests that an entire team of data scientists may not be needed for chatbot development.