However, the main reason is that the system prevents you from using "logout" as a "panic" button. If your characters isn't in a "safe" area, it keeps your character in-game for some time to make sure you aren't trying to use the logout as a way to evade a threat. It lets you know it is keeping your character in-world for those 10 seconds so that you can either choose to keep your UI open in case you need to fight, or choose to close it immediately - in which case your character will still be in-world for 10 seconds, but without you, and so unable to defend if attacked.The game periodically saves your progress as you go along. It will also save your progress as you log out. Sometimes you will see the "You will logout in 10 seconds" when you try to logout, part of that is the system saving your progress, the other part is temp files and whatnot being resolved.