How does soul set others not to chat with themselves?

There are two ways for the soul to forbid others to send you messages, one is to hack the other party, and the other is to report the successful party.

The first method is the quickest and most convenient way, because you can't hear from him immediately, he can't pay attention to you, and he can't see your moment, which is equivalent to solving the problem from the root. The second method can successfully block him, unless he really violates the rules.