in <http://www.omat.nl/drupal/how-manage-spam-sending-part-sequel> we see:
In my previous entry I linked to a blog which shows how to send emails
through a botnet.
Today I stumbled over a movie which shows how you can spam millions of
forums from one interface. Again, I'm surprised at the professional
interface and the power of the software used.
Also surprisingly this software has support for captcha's. If you look
closely in the log file shown in the movie you can see they can crack
those as well.
So you can remove the captcha's. Besides bad usability, they are
useless.
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