Thanks for leaving a real comment

I appreciate you talking about how Bad Behavior works. It is an important distinction and I don’t think I put enough emphasis on that.

Most anti-spam systems look at the message and try to determine if it’s spam. Bad Behavior ignores the message and looks at the way the message is delivered. Spammers have to use botnets with custom payloads, open proxies, and other such tools to deliver high volumes of spam, and these turned out to be relatively easy to detect.

Bad Behavior also stops many scrapers from harvesting email addresses and comment forms, preventing future attempts to spam your site — or your inbox!