In their minds this should be the easiest thing on the world, not realizing that it is probably one of the hardest as everyone wants to do exactly the same making the markets extremely competitive.
I have come to understand something with the whole concept of buying low and selling high. Every trader want to buy low at a certain price without realizing the buying has to do with your own entry point and not what others think. Your entry point has to be determine by many factors, one of which is when you'll be targeting to sell. If you're targeting selling anytime within days or weeks then you don't have to rush into a declining market as there's every possiblity of further drop within that period but many don't take notes of this.
They blindly follow predictions of long term traders without realizing the reason for that entry point been emphasize on. In years or months to come the price is definitely going to be trading above that buy price but that can't be said about days or in weeks time, which is why you should do your analysis yourself and not rely on what you see online.
For example, long term traders hoping to take profit when bitcoin is trading around or above $100k aren't scared of buying when Bitcoin was trading below $50k but that shouldn't be the entry point of a short term trader as there was every possiblity of further drop as we experienced.