Added Captcha Plugin

CaptchaLast year (March of 2010) we reported that we had closed comments on posts that were generating the greatest amount of spam.

Comment spam is very sophisticated and it forces us to have to read every entry with great detail to determine if the comment was automated or in fact placed there by a human.

Disabling comments on specific posts worked for a few months but we noticed that some of these bots would crawl the site looking for more posts with open comments. We then decided to automatically close comments on posts that were more than 2 weeks old. This almost eliminated the comment spam but it presented a huge problem for our users…

We have a monthly recognition for people in the organization who qualify for leadership levels and bonuses for the first time. Some people would like to be able to congratulate those being recognized. We wanted to leave comments open indefinitely so team members could congratulate anyone at any time.

The Solution
We installed the SI Captcha plugin. Now all comments from bots are no longer accepted because they are unable to type the characters displayed by the captcha image. We have opened comments on all posts that were originally intended for reader interaction.

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