In my opinion, Pump and Dump are the good oppotunities for the trader can earn big money. However, If you are not good at catching the news in the market, I think you should join in pump and dump
I think pump and dump type of investing is not a healthy thing to do. Why? Because it creates a bad images to cryptocurrencies and those who haven't ride it will spread rumors that investing in cryptocurrencies is a waste of money and would think that the project their in is a scam.