Yes I had 781 btcd and now I have 0. I checked the address it was sent to and I have never seen it before.
Same happened to my on Dec. 23rd.
I had 1862 BTCD and when I checked my wallet on 25th there was a address the coins where send to : RR9CGV3bTMuJnofVzh5LBbGydQh59YW9oh
The transfer happened at 11:49 PM when I was still sleeping.
Why haven't you notify Bittrex and other exchanges about this ? Tell the owner of the exchanges about this asap and if possible confirm that this is really your address over the BTCD client.
The attacker might be the one who is selling right now. And Bittrex could freeze his account and check if you are right. This happened with the stolen NxT coins.
Is this your address ? RLiysVTABoFwUqWRVbtsdwJwY9eMvp5E1u