Apparently, it boils down to visibility. Answering the least amount of questions that are compatible with the class of women that you are interested in while still maintaining high match percentage. (Apparently each answer is a potential mismatch) This supposedly leads to a high match which means you will turn up in their searches more often. Then visiting thousands of profiles. (The example used a script to do it automatically.)They will see that you visited. Some will be intrigued enough to visit you back, of those, some might send a message. It is probably worth it to send a message to visitors anyway.