forex also as risky business
All trading can be a risky business, especially for the types of amateur and retail traders who don't quite appreciate yet that all trading is ultimately about risk-management.
Spot forex, in particular (because of all the counterparty brokers and the availability of high leverage and ease of trading without adequate funds) is just more prone to producing easy victims than other types of trading: it attracts certain classes of traders who hugely overestimate what they can achieve quickly, don't distinguish between genuine and counterparty brokers, are hugely undercapitalised, don't understand probability, statistics and position-sizing, believe loads of things that aren't true at all, are primarily interested in "get rich quick", imagine that forex trading is a way to do that, and are generally very naive and gullible.