Field reversal can reduce spam!
Words by Daniel Aleksandersen on 2007-01-30
If you use a publishing tool like WordPress, you can reduce the amount of automated junk content simply by reversing the way WordPress handles the ids for the comment fields!
WordPress has an automated system for verifying that the user entered a e-mail address formatted value in the field given the id email. Now, simply by swapping the ids for author and e-mail address throughout the publishing system and template, you will have ended most unwanted junk comments!
Most of these bots work by automatically filling in recognizable fields, so by swapping places between e-mail and author they will be filtered, confused, and fail.
I am also working on a WordPress plug-in that will allow these ids to change. By that avoiding that these kind of robots can learn and attack you again.

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