Reporting Spammers - One got through...

ECC+ has been great - in the 4 months I have been using it, only one spammer has managed to register on my sites.

That being said - I do not think that this one spammer got through is a problem with ECC+ - someone may have answered the questions, and it could have been from a new IP address.

What is the best way to report back to all of the providers, that the user is a spammer? I'd like to give back to the people who are helping me stop them, and stop this jerk from spamming other forums, too.

Can a "Report User" feature be added to ECC+ to help out?