The recent happenings of hack are becoming rampant that exchanges are no longer safe. If the exchanges can get hacked this means you and me stand no chance at all so in view of this if you can do get cold wallet/ Web wallet to keep ur funds safe, never leave ur long term bags on any exchange.
I totally agree on this, this is why people should be discourage on storing funds on exchanges. OnCE you put your funds in an exchange, you already do not have control over your fund. Instead of storing it in a exchange, better store it in an open source wallet like what I'm using called Hodler wallet, it is open source meaning you have the Full control over your fund no third trusted party needed. It is also the also the only open source multi wallet avaible so you could store any coin you prefer.