How to document threats from pro or anti spam terrorists?

I went to the anti-spammer home page. Ouch. Its full about how
guns are cool and usefull. What the benefits of *really* sharp knives
are. Scary. Can't decide whether its a total psycho or just trying
(with success) to project that image.

there are a lot of anti-spam web pages.,, and are examples
of the less psycho side of things.

Thanks. I looked at those but didn't see any procedures that could
be used in a legal context.

Just to clarify, I was talking about this particular anti-spammer's
home page. An individual. As in real life, psychos sometimes hide
in the cover of other causes.