There is one cardinal rule to remember when dealing with spammers and rogue sites: we must hold the high moral ground.

Therefore, when dealing with a spammer or a rogue site, don't:

• Threaten violence or vandalism;
• Mailbomb the site;
• Mailbomb the alleged spammer, who may be an innocent third party such as myself;
• Ping-storm or SYN-flood the site;
• Hack into the site;
• Try in any way to bring the site down illegally.

And above all else, don't use spam to fight spam. This also applies in Usenet - don't follow up to spam postings, lest your posting also become spam.