Why is the personalized signature in my space only visible to me? How to crack it

Hello, in order to prevent the QQ client personalized signature from being found after the change. If you do not synchronize your QQ client personalized signature to Space Talk, the system will save your personalized signature as Space Private Talk by default. Please rest assured that this private talk is only visible to the owner and can be deleted or set as a public talk; if you synchronize your personalized signature setting to a space talk, the personalized signature will be synchronized into a space public talk, thank you