Details
SCode is an anti-spam plugin that generates a CAPTCHA (or security image) that commenters must enter whilst commenting, this verifies that the comment was made by a human being and not using a spambot. CAPTCHAs are used on several other websites including Paypal and Google. CAPTCHAs have several advantages and disadvantages which have been discussed here.
A sophomore at the University of California, San Diego studying Computer Science