Actually this site has been paying out for more than a year; but because it was so efficient, people took for granted and thinking that it is a vault (nothing could happened to it), however this is far from the truth. Trading is a form of gambling. It can slip and fall into margin call and we lose everything if not careful.
And this happened to this overly-confident-constantly-stressed broker. His one slip led everyone's funds gone.
However he is planning to rebuild from whatever that's left. Let's see what happens.