Many said its absolutely a scam, pathetic and more. but crypto currency has favored to those who trusted on it, In terms of cross border payment, p2p and vice versa the domination of crypto is keep on increasing. In terms of investment people knew only Crude, stocks, bonds, stock market, gold etc...but this platform made a way ahead to make money harder and smarter, I know most of the government's are not favoring this but in upcoming years you will see the green signal for crypto as well.
In cryptocurrency investment many people have their own mindset and understanding concerning cryptocurrency, but I believe that cryptocurrency is all about trust and understanding before you can invest in cryptocurrency, so those people who are tagging cryptocurrency and especially bitcoin as a scam, I will say they are myopic of what cryptocurrency is all about, this is one of the reasons while some countries government dislike cryptocurrency because they thought that cryptocurrency will be a measure of embezzlement of funds until when some countries understand the features of cryptocurrency and they began to implement a law of regulating bitcoin.