CONSEQUENCES
One of the biggest losers in this movement is Melvin Capital which lost 53% of their assets in the month of January alone (and that was assessed after a $3 billion emergency loan). They held a very large short position in GameStop, among many other of the targeted stocks. Other hedge funds held multiple short positions in the stocks that were targeted.
In the midst of these insanely high stock prices, Robinhood decided that it would no longer allow its users to purchase many of the stocks that Reddit was targeting. As a result, since the massive influx of buy orders was the only thing maintaining the high prices, the stocks all plummeted in price.
Retail traders helplessly watched GameStop drop from $347 to $53 in just a week. While the lucky few got out with a profit, millions of retail investors lost their investments due to the actions of Robinhood.
Allegedly, Robinhood made this decision as a form of damage control for their business partner: Melvin Capital. Because of these allegations, a Congressional hearing is scheduled for the near future to investigate Robinhood's alleged infringement on free trade. Depending on the outcome of this hearing and the subsequent investigation, a class action lawsuit against Robinhood (and maybe others) may ensue. Regardless of the outcome of this investigation, however, it seems that Robinhood is probably burned for good as the go-to for retail investors: its ratings in the Play Store plummeted to 1.1/5 stars (the minimum is 1!) shortly after they issued the order to restrict their users' trades.