"Personalized signature in WeChat is not dynamic" means that the user has set personalized signature in WeChat, but the personal dynamic function has not been turned on. "Personalized signature in WeChat is not dynamic" means that the user has set personalized signature in WeChat, but the personal dynamic function has not been turned on. In other words, others can see the user's personal signature, but they can't view the latest status update of the user through the circle of friends or similar dynamic publishing function. Personalized signature dynamics in WeChat means that after the user sets a phrase or sentence that can be updated at any time in WeChat and turns on the "personal dynamics" function, the phrase or sentence will be displayed to the user's friends in the form of a circle of friends. In this way, the user's friends can view the latest news of the user through the "Friends' News" column in the "Discovery" page. Different from the conventional personalized signature, the content and format of personalized signature can change dynamically at any time, similar to personal status update on other social media platforms.