He recently did one about how he and his team set up a fake bitcoin site that would direct scammers to a fake support hotline when they try to withdraw the fake bitcoin, where they'd get stuck running in circles in a voice mail menu maze chasing the illusory bitcoin payout.
As one commenter put it, "I love how Kit has evolved over the years to find out the best way of making scammers go crazy is to treat them basically the same way Comcast treats their customers."