Thats why you should never buy on margin. Wonder how many people got wiped out.
if they don't sell they have not lost anything, the same for those that they didn't sell in 2013 and that held their amount until this pump, they didn't lost anything too, it's a matter how much you can hold seriously, there is nothing more to do, but cashign out at the right time and buy back more coins is something few can do
This isn't true. If the price falls far enough their position will be liquidated in order prevent losses on the bitcoin being loaned. The exchange wont let you lose money that isnt yours