I think the only main problem its most of the people still doesnt use the correct tools, its like i put an screw with a plier instead of a screwdriver.
Well this its the same thing, the exchange like his name says its for exchange and make movements, not to save your coins, but most of the people use them like a wallet, so from that comes the troubles.

Its easy as that. Use the things correctly and you are not gonna have any issue.