oh that one.
if you watch carefully, the whole anime is ripped off from a religious context.
people like it and I respect that.
I think its disgusting, gory and unhealthy
as for I thought the same about elfen lied and higurashi
but perhaps by passive attitude reflects that.
many are just like 'oh there's morals in that, if you look at it carefully'
nah man, too much violence, not much to really think about.
:/