Ysh wrote:If game do not want me to log out to become invulnerable, game should be program so I can not log out to become invulnerable. For example, if I am in combat or recent in combat, my character can stay in world for maybe up to 15 minute.
It's true. But this game is in permanent Alpha, meaning it's unfinished, and programmers make mistakes all the time. Every game has things that it should do, but it doesn't, and exploiting the fact will get you punished. (Unless you've reported it, anyway.)
The point is that players who are new to this game have a lot of reasons to not expect logging off to be an insurmountable defensive maneuver, and so they don't use it to survive.
(Also it's kind of dumb that it works.)