I think this is a misconception. If you are trading on public information then it's not front running. If there is a distressed seller (whale) getting out then buyers will compete on their discount to fair value to provide to the whale. Momentum trading into that will not be profitable unless you are faster than everyone else in understanding the fair price -- in which case you are indeed doing price discovery. If you shorted at the price where buyers were providing liquidity to the whale then you'll just lose when price reverts to fair value.Momentum trading isn’t about price discovery. It’s about front running whales. And that is negative to the real economy: whether it be bear raids or it be creating instability in commodity prices or taking money from people who are buying for cashflow and value (and not for price).
Wait, I'm creating a moral component or were you paraphrasing what I said about you? You have to distinguish which types of trading are beneficial. I'm glad you agree that market makers are beneficial, but that is just one facet of the liquidity ecosystem.I think you are trying to create a moral component to trading when there isn’t one. You can easily say: who cares if I contribute. I’m having fun, earning and not hurting anyone directly. You will be amazed at how many people say that on a bank trading floor.