I have some CLAMs on Just-Dice and, with the recent price rise, I want to transfer some to Poloniex. However, after clicking 'Withdraw', there is a message:

"Your withdrawal will be sent from a random address in the hot wallet. Do not withdraw directly to any site that uses the 'sending address' as a 'return address' because any coins they return to you will be credited to a random Just-Dice account."

Is it safe to withdraw CLAMs from Just-Dice to Poloniex directly?