Because there is one truth, if it will go up, then it should show it will go up, obviously some shocking news could change that in a minute, but unless that happens it should be as obvious as it gets most of the time.
It is technically good, but fundamentally negative then the technical will fail. I understand this since I started trading precisely in 2015. So basically at the moment there are only two strategies that apply in the trading market. That is technical and fundamental and still plus mental management. That combination is an old way that I still use today. Although it does need adjustment to current market conditions. But indeed everyone has their own way that is adapted to comfort and that is what differentiates.