Once the things have cleard up, it's easy to say who was dumb enough to buy bitcoin at 60K, right? But you wouldn't say that if Elon's tweet and China's ban didn't happen at the same time and the rise would continue.
If you are such a talented in predictions, you could sell your house and do short on futures tranding when the price of bitcoin was 60K, easy gains for you. Did you do that? No? People were calling stupids those who bought bitcoins at 20K, isn't it right? And those people were buying bitcoin at 40K and higher.
Bitcoin is a long term investment, you can't make profits overnight and it's not right to be hilarious against others, especially when your speech has zero value.