Where do you draw the line to get attention?

I started visiting dating websites and was very surprised to find a few websites where you may find explicit content that is about as close to pornography. I may understand that people like me may be a bit desperate to visit a dating website and try to find a few friends, but posting full frontal nudity to draw attention is a bit to extreme for my taste. I can still go with pictures of lady’s in swim wear and sexy clothing but where do you draw the line to get attention?