When you buy a binary option from centralized brokers, you actually bet against the platform, the broker makes money when you lose. This means that the broker must make sure it wins more than it loses, traders are playing an unfair game as broker/platform can cheat you by manipulating the price feed in their favor and block traders from withdrawing. Many times you win the trade, but lost your money.
BlockOptions.io aim to build a independent and decentralised platform for binary options industry. 50% discount Pre-ICO in 1st, Aug, 2017, find out more info at our BCT thread: https://bitcointalk.org/index.php?topic=2039087
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STOPGreat article