Blogger Spam Classifier : Captchas for Spammy Blogs

Earlier Blogger introduced a change that will prompt some blogger users to solve a Captcha if the spam classifier identifies the blog as spammy.

However, it initially led to some users are having trouble solving the new Captcha’s and are seeing Captcha’s when they shouldn’t be. Later Blogger fixed the problem and posted a revised version of the word verification system. Some excerpts from the post.

“There should also be fewer false positives. However, as I mentioned earlier, with any automatic classification of spam there will be some legitimate content that gets classified incorrectly.”

“It’s important to know that if you are prompted to solve the CAPTCHA, it doesn’t mean that there is anything wrong with your blog. Because of the number of variables our classifier uses, there’s no easy way for us to pinpoint why your blog may have tripped the word verification (publicizing this information also serves to defeat the classifier).”

“It’s important that we find ways to put reasonable barriers in place to further prevent the automated creation of spam content. This is not just to prevent the contamination of search indexes with spammy search results, but to ensure the quality of Blogger’s service for everyone.”

Blogger has earlier introduced Captchas to combat comments spam in Blogger. This has blocked spam comments to a considerable degree. Then there was flag objectionable blogs, now lets see this new outcome to combat blog spam.