The following is a cross-post from a StopForumSpam announcement regarding this plugin and misuse of the StopForumSpam database.
If you are using the WordPress plugin "AVH First Defense Against Spam" and are submitting reports to StopForumSpam with the "dummy" email address it provides, you can and should expect action be taken against you and your site.
False reporting to our service is unacceptable and will not be permitted - even when it is enabled by a mod or plugin author.
We are currently considering barring this plugin access to our service completely; at this time I would recommend looking for alternatives in the event that we choose to do so.
For more information, please refer to the announcement topic regarding false reporting to StopForumSpam: