"Kevin Wayne Williams" <kww.nihongo@verizon.nut> wrote ...
> Their website claims an amazingly high level of protection is provided 
> by Japanese law. Any comment on that?

I liked this bit best.

"> Please Note: Free memberships are not included in our Anonymity
> Guarantee.
> Any email sent in your trial period will be automatically
> included in our Anonymity Guarantee as soon you upgrade your account.
>
> Paid memberships do not show this footer message."
 
So, anonymously protected by a service specifically dis-claiming 
guaranteed anonymity unless paid.  I wonder if they have a sliding
scale of charges depending on what laws you broke.