I am still pondering this topic a bit.
An escort website. Gorgeous experience made by silicon valley designers, empowering features, no censorship. Stronger anti-sex trade and exploitation features then all current dating websites and social networks (strong ID, AI trust scoring, anonymous key-based 3rd party background checks). Payment options, escrows, and subscriptions to escorts. Hit the SA.com market in the same go. Rotating overseas hosting providers. Owners and builders with zero fingerprint, oversight by former government hackers.
Major market traction issue around only using bitcoin, etc. Difficult and unwise for owners to convert to any currency ever. Thats a potential deal breaker. Otherwise I am trying to understand why the endeavor isn't honorable, with merit, and sensibly profitable at least as a lifestyle business.