5. All parts of Telegram devoted to messaging will remain ad-free. We think that displaying ads in private 1-to-1 chats or group chats is a bad idea. Communication between people should be free of advertising of any sort.
6. (略) We will fix this by introducing our own Ad Platform for public one-to-many channels - one that is user-friendly, respects privacy and allows us to cover the costs of servers and traffic.