I am afraid this is true
Although I prefer decentralization, you are much safer with bigger and longer established exchanges. There are others, similar to Allcoin, that I didn't even mentioned because they don't have the volume to decently support transactions. Plus the facts that their support is lacking and you have no idea for how long they will exist.

When I have an issue with a transaction, I want their support staff to get back to me within a few hours, not weeks after submitting my request. Some don't even bother to respond, like coins-e.com - they just don't give a damn!

Edit: Now that I remember it, Cryptsy has the exact same issue. I have open tickets for lost deposits and coins missing from my account for months, some go back in January!