Why does qq space show the dynamics of people I didn't add friends to?

First, the development system or official designated promotion, recommended by space service providers.

Second: Ordinary netizens use @ your QQ number in diaries, heart-to-heart talks, photo albums and other places that can generate dynamics. The owner of the QQ number behind @ can receive dynamic information, even if he is not a good friend, he will be prompted.

You can choose unrealistic non-buddy dynamics, just don't select them in the check box (as shown below).