Comment spammers chewing blogger bandwidth like crazy

Mon Jan 15 00:43:22 UTC 2007

On Sun, 14 Jan 2007, Tony Finch wrote:
> I would expect the lists of compromised hosts to be fairly effective -
> open proxies of various kinds and perhaps botnet hosts. As for SMTP the
> blacklists would only be a starting point that either provide a cheap
> preliminary check or feed a more sophisticated filtering system.

If you allow anonymous, unauthenticated access to any system it will
be abused.  Auctions, blogs, chat, mail, phone, etc.  IP addresses
have never been good authenticators for applications. Sending 
confirmation E-mail addresses aren't that much better.  And blacklists 
will just continue to grow longer.

How do you know your user?