Some organisations collect spam for the purposes of improving spam filters and the like.
These spam archives may be made freely available on the internet (see link 1 for one example).
They may then be subject to legal challenges by spammers, who may attempt to get the site shut down or claim
damages. The site in link 1 is an example of this (see link 2), albeit in only an ineffectual manner.
The problem is that the spammers presumably do actually own the copyright to their spam.
So it may only be a matter of time before a spammer may mount a serious legal challenge against an anti-spam organisation.
What is needed is for the spammer to renounce his rights to the reproduction of the spam.
Therefore I propose email addresses of the form
disclaimer@site.whatever
where disclaimer is something like:
iunderstandthatthiswillbepublished
iagreeforthisemailtoberedistributed
pleasepostthisonyoursite
and the like.