This is old news but I'm just learning it: The people behind Robinhood said they founded the brokerage app because they were inspired by Occupy Wall St? They were angry that the hedge funds and insiders had all the info? Lol https://www.huffpost.com/entry/startup-insider-the-story_b_7976446
Robinhood sells trading data from its users to high frequency hedge funds like Citadel, which can execute trades at lightning speed w/the advanced info. Citadel in particular finances SuperPACs to elect politicians focused on cutting billionaire taxes. https://cdn.robinhood.com/assets/robinhood/legal/RHF%20SEC%20Rule%20606%20Report%20Disclosure%20-%20Q4%202019.pdf
Ken Griffin, the CEO of Citadel, has donated $44 million to federal politicians and SuperPACs in just the last few years, and at least part of his wealth is via trading on data he vacuumed up from Robinhood users with "free" brokerage accounts.