For converting CTs into USDT, there is a wager requirement as you read on our ANN thread.
Above post taken from the Sign up bonus giveaway, so is it official that players are now able to convert CTs into USDT. I tried to look for information in this thread but still no announcement about official rules for the conversion of CTs to USDT. The last information I can find is that bitcarra has not finalized the TP mechanism as announced on Dec 23rd. There are many promotion where most of the prizes is CTs but I think it is not attractive to get all those CTs if there is still no clear information about all the benefits of the CTs.