I do this and I know most of traders here do it. How do I know? Because if people will be contented on only small profits then they will go to the banks or stick to their banks and put all their money there sleeping. That is steady profit but very small. If OP is telling that the small profit in swing tradeing is good, I disagree unless I am a whale that even a slight 2% movement would still give me millions of spread after.
Condition of people in market is different, i will agree if whales who only cares about small profit (in percentage) because if people who only have small amount or maybe not much capital, they will wait for big profit and wouldn't take under 10% profit. Usually the profit almost same with withdrawal fees or maybe will only used again to pay fee in their trading activity again.