WP-Hashcash Plugin
Although the powerful Akismet plug-in quells about 99% of the spam received on this blog, I have taken the step of experimenting with another plug-in, namely WP-Hashcash. This plug-in operates in an extirely different way, employing client-side javascript to determine whether the page was opened in a browser. This will block all spam bot submissions, but leave genuine comments untouched.
It is feasible to replace Akismet with WP-Hascash. However, the way in which Hashcash works permits the two to work together. With the initial checks performed by Hashcash; if Hashcash suspects a bot sourced submission then place it in the Akismet queue for its perusal.
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