[Daivia]

Use a fake email to signup if you're that worried, and don't include your name in your username. As for pictures, the only picture I ever posted that someone identified was a hiking trail that is pretty popular for my town. If you don't want your pics to be identified, take a picture of yourself at a park across town or on vacation.

As for trolls, I have gotten the odd request for a threesome, being bisexual myself. But that is why OkCupid made a block user button.