It did strike me as odd while researching this that they spent so much time getting around ad blockers when they own the ad server as well as the content..
They could leverage the kind of stuff Facebook does already by serving the ads as regular content.
I think the only viable way to get ads to the users is by randomizing it into "regular" content.
PornHub already shows you a big wall of images from videos, why not add a view images that are ads?