diff --git a/api/src/main/java/net/kyori/adventure/audience/Audience.java b/api/src/main/java/net/kyori/adventure/audience/Audience.java
index d1c3eede0..52b3ba861 100644
--- a/api/src/main/java/net/kyori/adventure/audience/Audience.java
+++ b/api/src/main/java/net/kyori/adventure/audience/Audience.java
@@ -349,9 +349,7 @@ default void sendMessage(final @NotNull Identity source, final @NotNull Componen
   @ApiStatus.ScheduledForRemoval(inVersion = "5.0.0")
   @Deprecated
   default void sendMessage(final @NotNull Identified source, final @NotNull Component message, final @NotNull MessageType type) {
-    if (source.identity() == Identity.nil()) {
-      this.sendMessage(message);
-    }
+    this.sendMessage(message);
   }
 
   /**
@@ -367,9 +365,7 @@ default void sendMessage(final @NotNull Identified source, final @NotNull Compon
   @ApiStatus.ScheduledForRemoval(inVersion = "5.0.0")
   @Deprecated
   default void sendMessage(final @NotNull Identity source, final @NotNull Component message, final @NotNull MessageType type) {
-    if (source == Identity.nil()) {
-      this.sendMessage(message);
-    }
+    this.sendMessage(message);
   }
   /* End: unsigned player messages */
 
@@ -395,7 +391,7 @@ default void sendMessage(final @NotNull Component message, final ChatType.@NotNu
    * @since 4.12.0
    * @sinceMinecraft 1.19
    */
-  default void sendMessage(final @NotNull SignedMessage signedMessage, final ChatType.Bound boundChatType) {
+  default void sendMessage(final @NotNull SignedMessage signedMessage, final ChatType.@NotNull Bound boundChatType) {
     if (signedMessage.isSystem()) {
       this.sendMessage(signedMessage.unsignedContent() != null ? signedMessage.unsignedContent() : Component.text(signedMessage.message()), boundChatType);
     }
@@ -425,17 +421,6 @@ default void deleteMessage(final @NotNull SignedMessage signedMessage) {
    */
   default void deleteMessage(final SignedMessage.@NotNull Signature signature) {
   }
-
-  /**
-   * Sends the signed message's header to this audience.
-   *
-   * @param signedMessage the signed message
-   * @see SignedMessage#canSendAsHeader()
-   * @since 4.12.0
-   * @sinceMinecraft 1.19
-   */
-  default void sendMessageHeader(final @NotNull SignedMessage signedMessage) {
-  }
   /* End: signed player messages */
 
   /**
diff --git a/api/src/main/java/net/kyori/adventure/audience/EmptyAudience.java b/api/src/main/java/net/kyori/adventure/audience/EmptyAudience.java
index 7515b3dbc..921e8fa46 100644
--- a/api/src/main/java/net/kyori/adventure/audience/EmptyAudience.java
+++ b/api/src/main/java/net/kyori/adventure/audience/EmptyAudience.java
@@ -91,17 +91,13 @@ public void sendMessage(final @NotNull Component message, final ChatType.@NotNul
   }
 
   @Override
-  public void sendMessage(final @NotNull SignedMessage signedMessage, final ChatType.Bound boundChatType) {
+  public void sendMessage(final @NotNull SignedMessage signedMessage, final ChatType.@NotNull Bound boundChatType) {
   }
 
   @Override
   public void deleteMessage(final SignedMessage.@NotNull Signature signature) {
   }
 
-  @Override
-  public void sendMessageHeader(final @NotNull SignedMessage signedMessage) {
-  }
-
   @Override
   public void sendActionBar(final @NotNull ComponentLike message) {
   }
diff --git a/api/src/main/java/net/kyori/adventure/audience/ForwardingAudience.java b/api/src/main/java/net/kyori/adventure/audience/ForwardingAudience.java
index dd49b86ac..a728ebc1d 100644
--- a/api/src/main/java/net/kyori/adventure/audience/ForwardingAudience.java
+++ b/api/src/main/java/net/kyori/adventure/audience/ForwardingAudience.java
@@ -108,7 +108,7 @@ default void sendMessage(final @NotNull Component message, final ChatType.@NotNu
   }
 
   @Override
-  default void sendMessage(final @NotNull SignedMessage signedMessage, final ChatType.Bound boundChatType) {
+  default void sendMessage(final @NotNull SignedMessage signedMessage, final ChatType.@NotNull Bound boundChatType) {
     for (final Audience audience : this.audiences()) audience.sendMessage(signedMessage, boundChatType);
   }
 
@@ -117,11 +117,6 @@ default void deleteMessage(final SignedMessage.@NotNull Signature signature) {
     for (final Audience audience : this.audiences()) audience.deleteMessage(signature);
   }
 
-  @Override
-  default void sendMessageHeader(final @NotNull SignedMessage signedMessage) {
-    for (final Audience audience : this.audiences()) audience.sendMessageHeader(signedMessage);
-  }
-
   @Override
   @Deprecated
   default void sendMessage(final @NotNull Identified source, final @NotNull Component message, final @NotNull MessageType type) {
@@ -276,7 +271,7 @@ default void sendMessage(final @NotNull Component message, final ChatType.@NotNu
     }
 
     @Override
-    default void sendMessage(final @NotNull SignedMessage signedMessage, final ChatType.Bound boundChatType) {
+    default void sendMessage(final @NotNull SignedMessage signedMessage, final ChatType.@NotNull Bound boundChatType) {
       this.audience().sendMessage(signedMessage, boundChatType);
     }
 
@@ -285,11 +280,6 @@ default void deleteMessage(final SignedMessage.@NotNull Signature signature) {
       this.audience().deleteMessage(signature);
     }
 
-    @Override
-    default void sendMessageHeader(final @NotNull SignedMessage signedMessage) {
-      this.audience().sendMessageHeader(signedMessage);
-    }
-
     @Override
     @Deprecated
     default void sendMessage(final @NotNull Identified source, final @NotNull Component message, final @NotNull MessageType type) {
diff --git a/api/src/main/java/net/kyori/adventure/chat/SignedMessage.java b/api/src/main/java/net/kyori/adventure/chat/SignedMessage.java
index 978d7f6fb..d44600000 100644
--- a/api/src/main/java/net/kyori/adventure/chat/SignedMessage.java
+++ b/api/src/main/java/net/kyori/adventure/chat/SignedMessage.java
@@ -145,16 +145,6 @@ default boolean canDelete() {
     return this.signature() != null;
   }
 
-  /**
-   * Checks if this message can be sent as a header via {@link net.kyori.adventure.audience.Audience#sendMessageHeader(SignedMessage)}.
-   *
-   * @return true if supports sending as a header
-   * @since 4.12.0
-   * @sinceMinecraft 1.19
-   */
-  @Contract(pure = true)
-  boolean canSendAsHeader();
-
   @Override
   default @NotNull Stream<? extends ExaminableProperty> examinableProperties() {
     return Stream.of(
diff --git a/api/src/main/java/net/kyori/adventure/chat/SignedMessageImpl.java b/api/src/main/java/net/kyori/adventure/chat/SignedMessageImpl.java
index c7af1befb..1869175a9 100644
--- a/api/src/main/java/net/kyori/adventure/chat/SignedMessageImpl.java
+++ b/api/src/main/java/net/kyori/adventure/chat/SignedMessageImpl.java
@@ -71,11 +71,6 @@ public Signature signature() {
     return this.message;
   }
 
-  @Override
-  public boolean canSendAsHeader() {
-    return false;
-  }
-
   @Override
   public @NotNull Identity identity() {
     return Identity.nil();