europeforvisitors - 2:58 pm on Mar 23, 2005 (gmt 0)

I think that's what that means because there is no way that anyone can determine if a website is being published "specifically for the purpose of showing ads".

Google isn't a court of law, and rules of evidence don't apply. "Specifically for the purpose of showing ads" is like "invalid clicks": Google doesn't need to prove anything to anyone before invoking it as a reason for closing an account.