There is some speculation that sploggers are employing people in third-world countries to type in catchpa. This is probably done by pulling the images from the Blogger blog admin and presenting them in another pages so that the catchpa image and filed are displayed in manner where it is easy to read the image and type in the text. Why not block catchpa images from being displayed on other sites using this method?
I presume this is the same method used by servers like Angelfire that you see sometimes when someone tires to post an image from one site to another, and the image that is shown is a notice that it has been blocked for bandwidth reasons.
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