Long term trading may be picked by those who has no extra time to watch the price fluctuations regularly. They are people who do believe in a project or at other coins that already has good development and willing to invest and leave they investment for a longer time. Less stess with this kind of investment.
It may be or it may not be. Sometimes time is the element of selecting some other option and sometimes it is money and capital for investment. But in either case, you are allowed to go for a better profit if you chose long term profit. This is long term investment so you have to wait. And yes, this doesnt need you to give your whole day and everything is just easy and smoothly going.
Honestly, I think that both of those trading way all bring us a benefit in some way. Indeed, it is helpful for them or not , which depends much on their thought. Every people has their own way to do trading. With some that short term trading is good because they find it help you get benefit easily. But some is not . they find long term trading is much more useful. I also think that trading for a long term is much more better, and probably people have tend to trade for long term than short term. I think trading required a big risk, thus when we trade for long term we can get not only skill, experience but also reap a huge benefits.