It's contentious in the sense that there's a non-zero probability that the SEC could step in and ban that practice, which is something that Robinhood outlines i

It's contentious in the sense that there's a non-zero probability that the SEC could step in and ban that practice, which is something that Robinhood outlines in their S-1 filing under the risks section. >Message board people believe a lot of weird things about how markets work. Message board people also love reading comments and not looking at the articles they're typically commenting about.