It is but it isn't, the way it should be described is that it is a high risk stock exchange. I personally make a decent amount of $$ from buying/selling BTC but others buy and hold. It also is starting to be accepted more by bigger companies and more renown companies. HOWEVER, if anyone puts money into BTC in hopes of becoming a millionaire, its not going to happen. It also should be stated that you only put money into BTC if you can afford to lose it. BTC can crash in a week and then people are screwed. Is it likely? no not at all but its a small possibility none the less.