What is the policy on spam?

We have zero tolerance for behaviors such as mass mailing and spam. Accounts will be terminated with or without notice for any user who sends spam. It is recommended not to use sensitive and promotional texts similar to the following (similar to English words): free, discount, special offer, special price, low price, cheap, video, making money, mass distribution, making a fortune, getting rich, opening on behalf of others, salary, Friends, payment, business opportunities, treasures, collections, secrets, intelligence, top secrets, mysteries, etc.