Ah, well if you're going to exchange with multiple people for BTC, then it shouldn't be an issue. I had originally assumed you were sending all your payments directly to your main account and then withdrawing through the bank, which is a no-no if you're trying to stay off the grid. However, if you're anticipating a chargeback, it may impact the BTC exchanger. There have been cases where all payments sent from a Stealth account got put on hold due to the amount of chargebacks. So in the end, those BTC exchangers MAY potentially get fucked. Depends on the severity of the situation though.