He says:
1. Start flyff with automaton, to deaktivate the GameGuard.
2. Start CheatEngine
3. After you logged in at flyff you search your name with Cheat Eingine and replace all your names with for example "Flyff [GM]"
4. Then you should see "Flyff[GM]" in your Character Window.
5. Go to Options an set Whisper & Messenger Stat to Disaprove.
6. Now if someone want to pm you he'll see the Dialog ""Flyff[GM]" is refusing Messenger stat"