Social media discovered they could manipulate stock prices just like hedge funds. They did exactly what hedge funds do, but Robinhood locked them out because only "certain" people/orgs can manipulate the stock market to take advantage of others.
There has been risk to this game and the Trump admin's deregulation of the financial markets has enabled more risk. Perhaps it's time to reinstate regulations, and it's not like the SEC wasn't aware of what was going on. Most Americans are well aware of the corruption and manipulation of the US stock market. We suffer(ed) immensely from Wall Street's game.
Exposing what we already knew provides some sort of justice, and I'm grateful people are recognizing the stock market manipulation.