[HappMacDonald]

One thing I want to know is how porn spam (that is, spam containing pornographic image attachments) vanished so suddenly in the early 2000s. It used to be a huge segment of spam, and then one day it all just vanished.

So.. what made it go away, and how could learning about that help us make all the rest of it go away too?

[brandonwindson]

Visa, Mastercard, and PayPal stopped processing payments for adult sites that used deceptive marketing. Hosting providers terminated accounts that sent image-based spam because the legal risk was too high. The same approach would work for other spam types. Target the payment processors, the hosting providers and make spam financially unsustainable.