Some new entrants in cryptocurrency trading do trade blindly on coins without doing their research on coins before investing, majority invest base on FUD or a pump group which are not realiable.
The following are some of the factors to consider before investing in coins base on long terms investment:
On-going Projects
Community Hype
Market sentiments
Future projects
Social media reach
When seen it seems that hype and social media communities are the main factors causing this, especially those who are involved in it are beginners who of course think more about others (tend to imitate)
So, when they enter into the coins and get trapped into P&D its hard to get out