最私密的群聊方式，适合发起公共活动，但需要经过多轮测试，例如中途可能遭到恶意灌水，就说明群体中的信息传递有问题，直到最后，多轮测试成功且规模够大时，就可进行真正的私聊发起公共活动：

A feasible solution to organising a campaign, yet has to undergo many rounds of testing, where the group chat may be disrupted by factors such as floods of spamming ads. attacks etc., which means the chain of messaging is not reliable yet, but keep trying till successful chain is achieved and many rounds of successful groups chats are completed. Till and not until that time, a campaign is ready to be launched:

https://damus.io/note1nx7rtt5ef449egulm33epwjqg8upykkhxhd8g8892xc5sl8343tsdsx79n