Bitcoin has been criticized by forum users for its market volatility since its inception. Not only Bitcoin, but almost all objects in the world have their good and bad sides
Most critics are from outsiders of the forum and of Bitcoin market.
If you are in this forum, participate in Bitcoin market, have enough experience with it, I believe you won't have such critics. Outsiders, in contrast, only stay outside the forum and Bitcoin market, and they look at Bitcoin market volatility and see it is risky but they did not see beauty of this market, and strength of Bitcoin blockchain and its usefulness for their storage of asset safety.