Adult traffic is pretty useless to most traditional affiliate marketing-ish offers. It's almost like the users just have this one, single thing on their mind and can't be bothered with anything else at that moment.
And yet, the stats presented in the post seem to suggest otherwise. After they finish watching the porn, users click the ad and convert. Even if they click and convert at a lower rate than traditional media the data suggests that the lower CPMs more than make up for this.
It's not great for brand advertising (potentially). But for affiliate type marketing this seems like an untapped goldmine.
On the other hand, people who are in an aroused state have a naturally lower threshold for resisting impulses. It's actually an ingenious way to market services, if your brand can stand up to it.