This one scammed me too.  Shame on me for losing anything to it.

My own personal notes on this:  (see http://timestamps.glencooper.com/ for the format I use)

deposit to: 14H6nmT85eF2VNEkdgsaf4ZTzSaX7vn4Ud

20170715T021003Z: deposited 0.0023105 BTC ($5.01 at time of transaction)
it would only let me withdraw 0.0018105 BTC ($2761.66 per btc)
automatic loss of 0.0005 btc (withdrawl fee?)

Found listed on their "fees" link (https://cryptodao.com/content/fees):
WITHDRAWAL FEES   0.15% AND Min Fees for BTC: 0.0005 ,PPY: 0.02
TRADE FEES                FLAT 0.15%
TRANSFER FEES          ZERO
DEPOSIT FEES             ZERO

201707252228: established API.  Details in ADVANCED tab.  WARNING: PLAINTEXT!
20171119T0818Z: able to log in.  Still had 0.00231050 BTC in there.
20171119T0836Z: very bad feeling about this exchange.  Trying to withdraw and it's difficult; no MAX option.  Bad english on error messages ("Currency not enough").
20171119T0847Z: wrestled with the withdraw.  Couldn't get it to accept the google authenticator code.  FUCKING RIPOFF!
20171119T0855Z: scam confirmed at https://bitcointalk.org/index.php?action=post;topic=2072965.20;num_replies=36