A jake name man says he lost millions through trading bitcoin to the BBC scotland. He says i lost everything in a single trade. It can be said addiction of trading but there many positive sides of marketing Bitcoin. I can't say it is addiction, it can make you lazy in other works of earning money.
He is totally certified bitcoin addict. But i guess you will gain in BTC if you trade at the right timing, right decision and do not sell when you will only get some losses with your investment.