Basically because they dont have a pin on the wallets it means they(staff) then can sit there waiting for someone to put a any worthy ammount of BTC in there accounts AND as soon as it arrives in the your wallet the staff Can be setup logged in on your account ready for the coins to arrive in your wallet and soon as they arrive they can INSTANTLY withdraw the BTC to any wallet they like WITHOUT ANY PASSWORD.. And then when you complain you got scammed to support because theres no pin on the wallets the can just say OH ITS NOT OUR FAULT YOU MUST HAVE GOT PHISHED
AND theres nothing you can do about it BE VERY CAREFULL IF YOU ARE DEPOSITING COIN INTO SHEEP.. UNSAFE FOR VENDORS AND BUYERS ALTOGETHER
Can you please reword this post in a more clean and detailed manner? I'm trying to follow what you are saying here but I'm lost due to formatting and such. Thanks!