I think the main problem is new traders. When new traders trade the demo and they make money in some traders, they think "we are the perfect traders" after they can invest in a real account and lose their money. that is the main reason .. traders should not think they get profit when they get profit on the demo account and most new traders are trading losses, and they don't know why they lost so they should be disappointed, I think if they want the system to repair they don't will make that mistake again ... but isn't that always diforex market changes so that any analysis must also develop .... so that all traders must feel initially lost .. still or do not want to learn from past failures ..