That's if someone knows how to do DD properly. That requires knowledge that a lot of new investors don't possess.U learn more by doing your own due diligence on a stock. But hey, if listening to youtubers help ya then go for it. Just dont be suckered in to their little premium paid group
No one should be buying stocks solely based off a YT video. But using YouTube/Twitter/Reddit etc. as a way to have a pulse on the current market has a lot of benefit.