What part of anti-spam don't they understand?

When you run a mail server you learn a lot about spam, and spammers. Tonight I learned about Bigfoot. A company that had the really great idea to advertise its products, including an anti-spam product using... you guessed it... spam. Yes they actually sent out their mail to a list of addresses that could only have been reaped by sucking mailto: addresses from web sites. I know because I saw a good half dozen come my way from email addresses on web sites that I host.

So appreciating the irony of a company using spam to selling anti-spam tools I thought I'd send them an email indicating (quite politely I might add) that maybe they should think about firing someone in their marketing department. That is after I'd added bigfoot.com to my list of banned domains that cannot send any email to me which I also told them. I was hoping they might be dumb enough to repsond to me, but no such luck. But it was with much delight that I received a swift response from their mail demon indicating that their mail server has filled up and my email couldn't be delivered.

Now you tell me, do you think their mail server filled up with email from people wanting to buy their products? Or was it from people wanting to complain about their spam? As they say, if you live by spam, you'll die by spam...