Chinaman, he is only that high because he has multiple losses he won't accept. I have him beat, for sure, at this point. JSA also claims to have him beat, he will drop quite a bit. No way he will continue at that rank, it's not accurate, he is just gaming the ladder in his favor, it will catch up and he will drop.
I don't want to sound like the sceptic I am but I seriously think Beelzebub is not alone in doing this.
I would almost dare say that Dead Piggy has done this too himself and I'm sure that looking back over the time various other players have used/abused the system too.