Similar experience as below. Asked me to set up an expensive order and has been radio silent for over a week. I would completely avoid this user as they most likely get off at the thought of you completing an order rather than the item itself. No difference between users like this and scammers.

Got in touch about what he was looking for and asked us to set up an order. Then went completely silent and no payment sent. Messaged a couple of times but no response. Some courtesy just to say you no longer want an order would be a better way to handle it.

Great buyer. Clear communicator, knows what he wants. Hope to do business again sometime.