You can't really avoid it. Even if you're a person with a high IQ it's just impossible to plan for every possible way that you can get hit. Experience helps a lot, but in order to gain that experience you have to be a victim.
trading requires very high patience because if you can't control the patience you have then you will often experience a lot of losses and all you have to remember is that trading has a very high risk.
Well, I think the topic is more about fraud, not actual trading. There's no fraud in trading. It's just right and wrong decisions.
You are right, manipulation in trading cannot be called as fraud, as a trader we should be aware of that so we can make the right decision.
Trading is like gambling, you don't look only on a limited factors, there's a lot of factors to look, and that includes price manipulation which is hard to guess by looking at the graph alone.