I asked about this before but got no responses. I am hoping people are less busy now than right after the last major WP version was released.
While I am a big fan of Identicons, I want those on my site to be based on IP addresses, not the email addresses people supply. That way, it is easy to see which comments have been made from a particular computer - a feature I find more useful than having icons based on whatever commenters care to input as an email address.
Is there any way to alter the WordPress code so that Identicons are generated in this way? I am running version 2.6.1.
Many thanks for any assistance,