Each FINRA arbitration case would be expected to cost the company up to 10,000 in fees. If anywhere near the 100,000 users who left negative reviews on the Google Play store for the app file an arbitration and pay the filing fee, Robinhood will absolutely go bankrupt.
If you are/were a Robinhood user: https://www.finra.org/arbitration-mediation/initiate-arbitra...