Well just like you can get spam messages in your inbox, people will leave spam comments on your blog.

就像你能够在你的收件箱中得到垃圾广告信息那样，人们可能会在你的博客中留下垃圾广告评论。

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Through observation, I found that the most of spam comments are posted by spammers (programs, not humans), and they will leave the websites.

通过观察，我发现大多数垃圾评论是程序提交的，而不是人，并且它会留下网址。

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Media websites, for instance, want to be able to attribute comments and limit spam.

例如，媒体网站希望能够归整评论并限制垃圾邮件。

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Page administrators can then go through and unmark as spam those comments that were wrongfully hidden.

FORBES: More Facebook Lessons: How Filters Can Bite You in the Banana

The filters are set to hide comments they suspect as spam.

FORBES: More Facebook Lessons: How Filters Can Bite You in the Banana