- The term is called "pump and dump". It happens with stocks regularly; analyst/fund manager goes on CNBC and hypes up the next big thing, sells shortly after.

- The last people to cash out are called bag holders.

- There is a difference between good assets (AAPL, Bitcoin) and bad assets (NKLA, Doge), however the market is free to speculate in between.

- Regulation is required to ensure that markets are fair.

- The kids pumping Doge will probably lose their money sooner or later. Or maybe Doge just becomes a permanent thing. Who knows.