You subscribe and when you write someone it tells you to buy another subscription for them to reply to your message. There are about 5-6 different subscriptions you need to buy and canceling the first one is tricky, canceling further ones is more difficult. Are the profiles real? Can you trusty talk to people? Based on my experience the other people cannot reply even if you pay. I believe it's trying to get them to pay to read your messages. Every message I get is an automated default message, 0 personal messages written by humans but lots of missing features behind new subscriptions. This site is purely to exploit people's desire to meet others.