Porn addiction plus Gambling addiction are a very dangerous combination though.
I also didn't know that adult content sites were called corn sites, but I honestly can't see how people who are spending money and attention watching these adult films would be interested in spending money on gambling, it seems like a marketing strategy mistake to me, now if the ad was for an underground physical casino in which this underground physical casino also offered sex services to players then it would make perfect sense for the casino to pay for advertising on adult sites.