This is weird because none of these actually say not to buy Bitcoin, and many of them are reasonable positions to hold about Bitcoin: the level of risk is extre

This is weird because none of these actually say not to buy Bitcoin, and many of them are reasonable positions to hold about Bitcoin: the level of risk is extreme. The volatility of Bitcoin is reason enough not to treat it as an investment. It's pretty clear by now that buying it is more akin to gambling. The same is true of day trading stocks as a layperson, incidentally. If, on the other hand, you put your money into index funds instead, you would have stable, solid returns over a long period of time. But where's the fun in that?