I used to work at a content publisher with an adult focus that took in a significant amount of VC money from credible investors. It's true that many VCs will shy away from adult but not for the reasons you might think.

Whether or not YC will back your "hack" should be secondary to whether or not you can create a credible business. Youporn was a "hack" created by 2 guys and is now despised by the rest of the industry and is largey credited as letting pandora out of the box. They're also not rolling in cash. If you have a solution to "solve" the current situation adult publishers face then you've got something of real value.

The adult industry is in an awful state due to the rise of free sites and talent brain drain over the years. That makes for a perfect environment for companies to try and innovate in this sector and do what Apple did for music - but you've got to understand the business before you try to fix it. And being a consumer of the product is a lot different than creating a business out of it.