This one is so dumb. The scammer "seller" could easily do this himself, and make more than the sale price. Its crazy how people get so blinded by greed that they cannot think straight.
As for your question, yes, its still a scam if people dont think it is a scam.
Speaking of which, there is a fine line. Look at the product this company is selling called the NoPhone. Its a piece of plastic that looks and feels like a phone, however its just a dummy. They have made loads of money, and are not a scam.