I have several drupal sites and I constantly get barraged with requests for accounts.  I have Image CAPTCHA setup on all these sites and still I'm still getting 20 requests a day, mostly from China.  Anyone able to share what these people/automatons are trying to do?  How are they getting through CAPTCHA?  How can I stop them?  I am running a pretty old version of Drupal on a couple of sites, but even with almost current versions they flood in. 

Thanks for any help you can offer.

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Wayne Johnson,             | There are two kinds of people: Those
3943 Penn Ave. N.          | who say to God, "Thy will be done,"
Minneapolis, MN 55412-1908 | and those to whom God says, "All right,
(612) 522-7003             | then, have it your way." --C.S. Lewis

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