This is an utter scam. Please refer to the website's in terms of use, where you will find a "Risk Clause" that explicitly states that not only do they pay the female members, but they have this thing they call "incentivized communications impersonation ". Basically it says that to stay competitive, they ask other people to write on behalf of the profile owner and they could be of a different gender. It says that by joining the site, you accept these risks.