You may be thinking this is a trick, but it is not!
You earn robux by completing offers, most of which are surveys, these surveys have very important subjects and are routed to us by research programs, such as those from universities, they aim to poll the general population on several different topics, you may sometimes see results from these surveys on the news, such as: which political candidate is more likely to win? What do people think about certain environmental issues? What do people think across different social and economic groups?
Universities and other corporations running these programs pay us when you fill their surveys, we use that money to purchase the robux that you earn through our platform.