It's a general misconception that binary option brokers only want you to lose your money. For a legit broker high trading volume is more important than emptying few accounts. No matter what, Binary Option Brokers make money, but from the actual spread which they split with liquidity providers. I'm not saying that all brokers are legit, but I feel it would be beneficial to post a video here to demonstrate how IQ Option makes money.
So, here is the video to demonstrate how IQ Option makes money:
Hope it helps.