Coins that folks see vanish without warning on Cryptsy are typically auto suspended by our anti fraud system. Without putting out how it works certain questionable deposits that may resemble different types of attacks will suspend a market. This system has always been in place since the 51% attack on powercoin that took place almost one year ago. Once we review the transactions in question we reactivate the market. This system protects both Cryptsy and the users coins from being stolen essentially. Hope that helps clear things up.
BitJohn,
You need to head over to reddit/r/dogecoin
There are over 6 front page posts with hundreds of upvotes regarding concerns about Dogecoin on Cryptsy. You need to do some PR over there.