http://www.hourlydump.com/ All the YPN ads on that site are the most paying ones (insurance), while the website in itself has nothing to do with insurance. Is this allowed? How can it be done? There is not even a word "insurance" in the html
If you login to your YPN account and go to Ad Setup -> Ad Targeting, you'll see the "Suggest an Ad Category and Subcategory". My guess is that this publisher has chosen one of those subcategories that shows insurance ads. I wouldn't be surprised if YPN frowned upon this kind of thing. Then again, I wouldn't be surprised if they didn't either. But if it was my site, I wouldn't want to take the chance.
YPN has seen my sites several times because of questions I've asked, and they've never said anything about me targeting unrelated advertisements. A site like hourlydump.com (which is much like my own) gets enough traffic to target pretty much anyone....so I go with the highest paying category. Low clicks, low CTR, but high earnings. Worst case, they contact me and tell me to target something more appropriate. I doubt they'll do that, but if so, it's not the end of the world. Then again, knowing how they're banning people for international traffic, they might just ban me.