My investment strategy is buying and holding. I feel that day trading is time consuming and stressful as well. I agree that some coins prices fall after ICO but not all projects. That is why we have to research carefully before investing. Solid projects are still worth investing in.
Nice strategy and in my own strategy, I think wisely before doing such thing because it is so hard to be careless this time, we might lose our money in just a blink of an eye.