To my regret, the Bitfinex exchange has already shown what can be negligent or involving Crime in the administration, which I think helped the hacker's attack to withdraw millions of dollars from users' accounts. This exchange I have no more confidence. If this continues on, then we will only lose, but do not wait for the rise in prices.
People are just dumb. If they took out their coins and funds after the "hack", this exchange wouldn't have much of an important factor on the market anymore, and thus a potential downfall of this exchange would lead to less overall damage. It's obvious that people never seem to learn from prior exchanges that have gone down. There are so many decent exchanges available, why stay there where you expose yourself to such a high risk? It really boggles my mind....
I think the biggest issue is greed, people only care about the potential short term benefit and they dont care about the long term profits, after all if someone were to lose their coins there then that person will lose the chance to earn profits with those coins in the future and the potential gains lost by that are probably way higher than any short term gain.