1. A circle of friends is something interesting or meaningful for individuals to share their lives. For individuals, these things are privacy in a popular sense. Personal privacy is particularly important in today's society. If it is obtained by criminals, it will bring trouble to individuals and families.

2, you can do some targeted shielding treatment for some friends, that is, the auxiliary function of "three days to see". The advantage of this function is that you can set friends' circle of friends to be visible within three days, and messages from three days ago will be automatically blocked. If the other party wants to see it, there is no way to see it.

Extended data:

The main difference between setting friends circle permissions and blacklisting is that after setting friends circle permissions, you can still see each other's friends circle, but after blacklisting, you can't see the dynamics of each other's friends circle.

1. After joining the blacklist, the other party can not only see their circle of friends, but also send messages to themselves. The advantage of joining the blacklist is that if you want to chat with each other in the future, you just need to remove them from the blacklist.

2. Set the circle of friends permissions, the other party will no longer be able to see their updated circle of friends, but will only display a blank, but still see the contents of their circle of friends.