MapleChangeEx has exit scammed. They posted this tweeted on their page to announce the so-called hack
After a barrage of messages on threats, they've done a set of follow up tweets including this
It's unfortunate how people keep losing money to these fraudsters and it goes to show how long before cryptos get mainstream adoption. Being a Canadian exchange, I'm hoping the laws of the land will be able to bring them to justice and all legitimate user of their exchange are refunded.