What has to be remembered is that we live in an age of instant gratification, the idea of long term effort to achieve a goal, especially a romantic/sexual one, is so far outside most people's box that it's no longer a consideration. That being the case it's to be expected that people will seek shortcuts, trying to get to the supposed "good parts" as quickly and with as little work on their part as possible. The internet is popular because it facilitates that, and since the idea that there can be such a thing as a "mistake" or doing something "wrong" is no longer current in a world where all opinions are considered equally valid they will naturally just find a web site that says what they want to hear and take that as proof that they are right.