July 27, 2007 - 1:51 P.M.
So, according to one Peter Brockmann, challenge/response (C/R) spam filtering is a wonderful thing, and beats all other anti-spam techniques into a cocked hat.
Huh? What? How did he come to that conclusion?
I've beaten the "C/R filters are a terrible idea" meme to death, as have many others, so I'm not going to repeat all that here. If you're new to the arguments, take a stroll through these posts (perhaps you should work from the bottom up).
But I was about to write about Peter's methodology. However, it would have been an identical post to the one Justin Mason wrote -- he beat me to the punch. So here are Justin's money quotes:
The “Spam Index” is a proprietary measurement of spam filtering, created by Brockmann and Company. A lower “Spam Index” score is better, apparently, so C/R wins!
...
However — there’s a fundamental flaw with that “Spam Index” measurement, though; it’s designed to make C/R look good ...
...Read more