“The SEC’s proposal would turn back the clock, bringing U.S. financial markets to the old, manual days when retail investors were forced to interact with their broker or advisor by phone or at a branch office,” Robinhood Chief Brokerage Officer Steve Quirk said.

https://www.wsj.com/articles/sec-mulls-new-limits-on-apps-that-use-data-to-make-stock-trading-fun-674abf3c?mod=tech_featst_pos1