Hy, I have a question on this interesting discussion: the team can freeze and control such transactions just as long as they are not confirmed? Who decides / how is decided which wallet is such a special one that needs more confirmations?
Basically, any deposit to an exchange has a required 5000 confirmations. This is for EVERY deposit to any exchange since once you trade the coins, they cannot be recovered. The delay allows people to report any theft of their coins and allow the EBI to perform their initial investigation. Upon completion of this initial investigation, if there is enough evidence to prove their has been a crime, the EBI will put in a proposal to freeze the wallet that the victim's funds have been sent to. This requires a masternode vote to pass or the wallet will not be frozen.
So the team cannot just freeze a wallet, there is safeguards put in place to prevent this. Each step in the process requires voting from the masternodes.
You can find more information about the full process, as well as the results of its use already, in the links that were provided in this post above -
https://bitcointalk.org/index.php?topic=4912743.msg55685828#msg55685828