robinhood is revolutionary - zero margin trading and they lend you the cash to gamble.Methinks this is all a scam.
wiki sums it up:
Robinhood Markets, Inc. is an American financial services company headquartered in Menlo Park, California.[3][4] Robinhood is a FINRAregulated broker-dealer, registered with the U.S. Securities and Exchange Commission, and is a member of the Securities Investor Protection Corporation.[5][3] The company's revenue comes from three main sources: interest earned on customers' cash balances, selling order information to high-frequency traders (a practice for which SEC opened a probe into the company in September 2020[6]) and margin lending.[7][8] As of 2020, Robinhood had 13 million users.[9][10]
The dangers come from the default execution mode and margin lending. I doubt that many of their customers pay a hoot until the company changed margin requirement to trade in Gamestop or AMC.