Actually, let's make it possible to disable it if needed

src/main/java/me/totalfreedom/totalfreedommod/LoginProcess.java

@@ -192,7 +192,7 @@ public class LoginProcess extends FreedomService
         final PlayerData playerData = plugin.pl.getData(player);
 
         // Sends a message to the player if they have never joined before (or simply lack player data).
-        if (!event.getPlayer().hasPlayedBefore())
+        if (!event.getPlayer().hasPlayedBefore() && ConfigEntry.FIRST_JOIN_INFO_ENABLED.getBoolean())
         {
             final BukkitTask runnable = new BukkitRunnable()
             {

src/main/java/me/totalfreedom/totalfreedommod/config/ConfigEntry.java

@@ -165,7 +165,8 @@ public enum ConfigEntry
     ADMIN_INFO(List.class, "admininfo"),
     VOTING_INFO(List.class, "votinginfo"),
     MASTER_BUILDER_INFO(List.class, "masterbuilderinfo"),
-    FIRST_JOIN_INFO(List.class, "first_join_info"),
+    FIRST_JOIN_INFO(List.class, "first_join_info.text"),
+    FIRST_JOIN_INFO_ENABLED(Boolean.class, "first_join_info.enabled"),
     AUTO_ENTITY_WIPE(Boolean.class, "auto_wipe"),
     TOGGLE_CHAT(Boolean.class, "toggle_chat"),
     DEVELOPER_MODE(Boolean.class, "developer_mode"),

src/main/resources/config.yml

@@ -592,9 +592,11 @@ masterbuilderinfo:
 
 # What new players will see upon joining for the first time.
 first_join_info:
-  - "&6Welcome to TotalFreedom -- the original Free-OP server!"
-  - "&eThe server's name doesn't mean we have no rules. Do &6/rules &efor a list of them."
-  - "&aNeed help getting started? Do &2/help &aor a list of commands!"
+  enabled: true
+  text:
+    - "&6Welcome to TotalFreedom -- the original Free-OP server!"
+    - "&eThe server's name doesn't mean we have no rules. Do &6/rules &efor a list of them."
+    - "&aNeed help getting started? Do &2/help &aor a list of commands!"
 
 # Famous players - cannot be banned by username
 famous_players: