Gox has had massive withdrawal issues for a long time, and yet some people kept on trusting that site until now. Now if you lost money to Gox, can you really blame Gox when it was you who was stupid? Same goes for exchanges run by anonymous people. If the person decides to just run away, you can't really do anything. Cryptsy does have speed issues, but I wouldn't be worried about their safety aspect. It looks like a legit exchange with a proper support system run by real non-anonymous people.