While I do without trading robots and it is much easier to put new orders to buy and sell, as the goal in numbers may vary
You are indirectly telling us that only ROBOTs can be an emotionless trader, anyway, it seems you are right to some extent, we are humans and in as much as we have human nature, we will always put emotion forward.
What makes us a better beings than animals is because we have the ability to control our emotion, everything is right there in our mindset, if we really dont want to be greedy, we can achieve this if we put the whole of our mind to it, otherwise, it will be better we just make use of trading BOTS as you said if we are too weak to control of greed and emotion, but to me, nothing too difficult here to control ones greed level.