Binance is not responsible for the scam and I do not think we can say that they supported those scammers, the devs are the guilty party here and since they have scammed so much money I hope that a criminal investigation takes place and they are put behind bars, however binance and any other exchange is responsible in the sense that they supposedly investigate each coin they list on their exchange, and they decided to list this coin and now their customers have lost a lot of money because of that decision, so it is obvious that whatever they are doing to stop scammers from listing coins in their exchange is not enough.