Even slander slander is not deleted.
An act to beat "a person giving a fixed name" is prohibited with other boards.
Because the reason is because a story can become rash from an objective topic of a thread by beating "a person giving a fixed name".
An SAIAKU board is one of the boards for isolation.
A user must not beat "a person giving a fixed name" with other boards because there is not an SAIAKU board.
In reality, there is a person to beat with other boards even if there is an SAIAKU board.