Sure, it's always a subject of test, but as we can see there are people who tried that.
Focus: I agree that Hentai is pretty close niche. TrafficJunky offers ads based on used "keywords" so I guess you could target gaming keywords there and display your ads to more targeted audience.
I know, it's still just porn, but by judging myself I am not completely blind to ads on porn sites. I read that some mainstream companies already tried it with Pornhub because the price is just very low compared to Facebook or Google Ads and to be honest Pornhub becomes known brand outside porn. They had advert on Times Square, NYC (
https://i.pinimg.com/originals/34/f2...d3a36dbd82.jpg). I think that most people won't be as offended by PornHub as by other porn sites.
Eat24:
https://blog.eat24.com/how-to-advert...-porn-website/
Diesel:
https://mic.com/articles/132281/dies...are#.0I0zvQkix --------
http://ift.tt/1Kwa6n1 ----
https://static.adweek.com/adweek.com...hed-2016_0.jpg
It's true that those brands offer quite generic product that everyone needs - food, underwear.. but still..
thanks for your replies