In the previous version of WeChat, you can find the user's WeChat account by searching for micro-signal or mobile phone number and blacklist it directly. You can view each other's WeChat photos through the blacklist, and the other party will never know.

If you are an Android phone, the other party can't see the cover of the other party when blocking you, but if you are an Apple phone and the other party blocks you, you can still see the background picture of the other party's circle of friends.

But if you haven't sent a circle of friends, all your friends are invisible backstage.