6 January 2005

Why Not Captcha?

Posted under: at 00:09

In my opinion, there are several reasons why Captcha is not the way to go for combating blog spam:

  • It is an accessibility disaster. It could discourage a disabled person from posting a comment. Worse, it could also discourage a normal person from posting a comment :).
  • It can be easily circumvented by using a popular third party web site. For example a porn site. Before a visitor can gain access to the porn site, he needs to give answer to a reused Captcha.
  • It does nothing to prevent Trackback and Pingback spam.

People, please disable your Captchas and turn to other method of combating spam :).

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