I’m sure for some users the notifications can be alarming or induce bad/impulsive behavior.
I have on occasion though found them useful where I get a notification that X stock is down Y% today. Most of these have been bad market days and I’ve said, “Nice, I’m long on X and it’s on sale today so I’ll pick up a few more shares.”
So on the one hand I understand how these could lead to a rash decision from some I don’t think Robinhood is trying to get people to buy high and sell low.