Don't use a captcha system - you know those annoying little things that make you type in some goofy letters and Numbers to prove that your human and not some random spam bot.

不要使用验证码系统。这些讨厌的东西非要让你输入一些傻瓜式的字母或是数字，来证明你是人而不是那些随机的垃圾邮件虫。

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If the post can be detected as spam on one site, it can prepare the other sites to identify it as such, similar to the hot lists of spam bot registration E-mail and IP addresses described above.

如果在某个站点上可以检测出垃圾帖子，它就能让其他站点也能辨别出该帖子，这类似于上面描述的垃圾信息bot登记电子邮件和IP地址的热门列表。

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The idea of negative CAPTCHAs is not to ask a user to proof that he is human, but reveal that a spam robot is a bot.

这个消极的CAPTCHA的主意，不是去让用户证明他是一个人，而是让一个机器人证明他是个机器人。

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The behavior of such a spam bot is easy to identify as it spews millions of spam messages.

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Unfortunately, our campaign page was hit with obvious spam bot attacks.

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"Bot-herders and other 'spam kings' are difficult to track down, especially in so many different jurisdictions and areas around world, with no enforced policies against them, " Manky observes.

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