sh! confession dm <UserID> or <@Mention> [Your confession] Send anonymous confessions to users.
sh! confession channel [Your confession] Send anonymous confessions in the text channel.
sh! confession random Take a random confession and display it in the channel.
sh! block [confession ID] Block a user so that no more confessions can come from him.
sh! report [ConfessionID] Send a confession report to the moderators of the server.
sh! stats Check how many confession are sent in the server.
If want to see all command check the documentation here