Yeah, its true. Bitcoin is making its investors millionaires. There are already some that benefited from the rise of the market value of bitcoin. We still expect that there will be an addition to that list by next year.
The people who become millionaires are the one that invested some big amount of their fortunes during the early years of bitcoin and held it for many year until the price reached some all-time highs. Those who invested recently might already wealthy people that trying their luck also in bitcoin and cryptocurrencies but if they are beginners they might suffer some losses before eventually earning some profits.