Thanks for this warning. Yesterday, I saw some gains on BTS/USDT and wanted to buy some of them on the Binance platform, I didn't think they were a exchange platform.
What was the value that you bought/sent ETH/open.ETH? And did you use the platform during that period to get notifications?
The point of their claim that they are a decentralized platform and their use of a third party makes it impossible to trust them.