Technically, at the time this deck was a thing there were lots of cheaters who used external tools to force opponents to surrender. You could never reach kog because you could find one of these cheaters every 5 matches. Konami has worked a lot to ban all those people. OP's comment was a reference to this fact, as it was commonly said that the majority of those "hackers" had japanese usernames.
Anonymous
uhhh....
