Ask HN: Spam fighting with bogus lead gen nowdays?

Hey folks,

A couple of years ago, there was an innovative company, that basically took all these spam mails, and for every one of them sent to every recipient, it filled out their lead-gen forms with malicious (but still validating) data. To date, this is the state-of-the-art in fighting spam effectively (to my knowledge), since it impacts their revenue stream instead of an ever-escalating technological arms-race. Unfortunately, they went bust, when the black-hats started DDOSing them out. (My datasource at that time was, unfortunately, slashdot; please correct for any biases / false data).

Has there been any development on this front? Anyone tried replicating their model?

(I understand if it doesn't seems a lucrative idea to this bunch; I'm just saying, there are a couple of well defined sources in my spambox, I would be willing to part with good money to see them eliminated. )