Whoever is saying the Bitcoin is a scam is a mad or nothing. But, is a better solution to PayPal. This is a fast transaction method worldwide. But, gradually it is synonym as a currency or the coin.
They can think of "scam" by looking its current value but not the technology. Even so, PayPal is even a bigger scam. Their buyer & seller protection has scammed much more people, plus their outrageous fees. Anyway they are not the ones who to listen to.