Thursday 17 January 2013

Blogger Comment Spam Detection

I noticed something strange going through the comments on my blog.

This comment, which was a reply to a comment, got directed to the spam comments:
Weell the information about the Joomla is very imformative because you tell all the important things which we can creat just watching your blog and it is also very easy to read and understand. I change many things just watching your blog. Thank you for the imformation you provide. 
Yet this comment was displayed:
Well the information about the Joomla is very imformative because you tell all the important things which we can creat just watching your blog and it is also very easy to latest news on information technology read and understand. I change many things just watching your blog.
They were both on the same post by the same blogger user.

The displayed comment had two fewer typos and was not a reply to a comment, other than that they are almost identical. I guess the spam filter was triggered for the former as it had too many red flags:
  1. One typo per line (average)
  2. A blog profile that's actually an html link to a page unrelated to the blog's theme.
  3. Reply to a comment?
Or was it simply the mention of Information technology on the latter comment, that got it through the spam filter?

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