I feel there is a good side and a bad side to it. Good side is that knowing that it has all the signs of a scam , it is likely they will default on the payment, therefore having an escrow can prevent that.

Bad side is that, now that an escrow is available more people might join the campaign and would advertise more for the scam. But since its a scam ,it is better to make people aware of it, and tell them not to join the campaign and if they do so thenn do it at their own risk and not complain if they do not receive the payments.