Prediction: Robinhood loses class action and is bought by Schwab for pennies after founders plea bargain for 3 months prison and $20M in fine each and disappear into the ether like Adam Neumann.
I would actually love if some actually reputable brokerage bought Robinhood and just offered it as an (optional) interface to their current trading platform. It's no doubt that part of Robinhood's success is that the UI is much better than a lot of current trading platforms.