You don't need to by nosy to know they're in-trade though. They stated they were charged a fee on the postage amount which means they're in-trade as those that are not in-trade don't get charged a success fee on postage.
They've forced ping in previous promos but i dont remember them removing bank transfers as an option in previous promos.
I see the next promotion Tradme has for casual sellers makes it so that every new listing will have to have ping included and the bank transfer option will be removed. Recently Tradme has removed the bank transfer option for in trade sellers. Is this a sign that this will also happen to casual sellers too?